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Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.","units":{"shares":[{"end":"2011-07-31","val":233003,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2011Q2I"},{"end":"2011-10-31","val":233003,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2011Q4I"},{"end":"2012-04-28","val":233003,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1I"}]}},"EntityPublicFloat":{"label":"Entity Public Float","description":"The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter.","units":{"USD":[{"end":"2011-06-30","val":0,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2011Q2I"}]}}},"us-gaap":{"AccretionAmortizationOfDiscountsAndPremiumsInvestments":{"label":"Accretion (Amortization) of Discounts and Premiums, Investments","description":"The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":-32825,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2010-01-01","end":"2010-09-30","val":-39077,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":-45951,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-7687,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-13838,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2011-01-01","end":"2011-09-30","val":-17833,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-12-31","val":-22533,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-5503,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1"}]}},"AccumulatedOtherComprehensiveIncomeLossNetOfTax":{"label":"Accumulated Other Comprehensive Income (Loss), Net of Tax","description":"Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.","units":{"USD":[{"end":"2010-12-31","val":-64752,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2010Q4I"},{"end":"2010-12-31","val":-64752,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":-64752,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"end":"2011-06-30","val":389586,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2011Q2I"},{"end":"2011-09-30","val":547607,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":338430,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q4I"},{"end":"2011-12-31","val":338430,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28"},{"end":"2012-03-31","val":274490,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1I"}]}},"AdditionalPaidInCapital":{"label":"Additional Paid in Capital","description":"Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. 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Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.","units":{"USD":[{"end":"2009-12-31","val":17694266,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2009Q4I"},{"end":"2009-12-31","val":17694266,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2009-12-31","val":17694266,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"end":"2010-06-30","val":22766292,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2010Q2I"},{"end":"2010-09-30","val":21958787,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3I"},{"end":"2010-12-31","val":16177800,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2010Q4I"},{"end":"2010-12-31","val":16177800,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28"},{"end":"2010-12-31","val":16177800,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":16177800,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"end":"2011-03-31","val":18837859,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q1I"},{"end":"2011-06-30","val":18424155,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2011Q2I"},{"end":"2011-09-30","val":26089083,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":30217170,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q4I"},{"end":"2011-12-31","val":30217170,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28"},{"end":"2012-03-31","val":40010545,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1I"}]}},"CashAndCashEquivalentsPeriodIncreaseDecrease":{"label":"Cash and Cash Equivalents, Period Increase (Decrease)","description":"Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":5072026,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2010-01-01","end":"2010-09-30","val":4264521,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":-1516466,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":2660059,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":2246355,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2011-01-01","end":"2011-09-30","val":9911283,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-12-31","val":14039370,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":9793375,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1"}]}},"CashAndDueFromBanks":{"label":"Cash and Due from Banks","description":"For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.","units":{"USD":[{"end":"2010-12-31","val":4206974,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2010Q4I"},{"end":"2010-12-31","val":4206974,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":4206974,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"end":"2011-06-30","val":3748668,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2011Q2I"},{"end":"2011-09-30","val":4201603,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":4359616,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q4I"},{"end":"2011-12-31","val":4359616,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28"},{"end":"2012-03-31","val":5294251,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1I"}]}},"CashCashEquivalentsAndFederalFundsSold":{"label":"Cash, Cash Equivalents, and Federal Funds Sold","description":"The sum of cash and cash equivalents plus Federal Funds Sold. Cash and cash equivalents consist of short term, highly liquid investments that are readily convertible to known amounts of cash and are so near their maturity that they present negligible risk of changes in value due to changes in interest rates -- usually with an original maturity less than 90 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Stock, Shares, Issued","description":"Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.","units":{"shares":[{"end":"2010-12-31","val":300000,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2010Q4I"},{"end":"2010-12-31","val":300000,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":300000,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"end":"2011-06-30","val":300000,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2011Q2I"},{"end":"2011-09-30","val":300000,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":300000,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q4I"},{"end":"2011-12-31","val":300000,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28"},{"end":"2012-03-31","val":300000,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1I"}]}},"CommonStockValue":{"label":"Common Stock, Value, Issued","description":"Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.","units":{"USD":[{"end":"2010-12-31","val":1500000,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1500000,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":1500000,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"end":"2011-06-30","val":1500000,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1500000,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1500000,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1500000,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28"},{"end":"2012-03-31","val":1500000,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1I"}]}},"ComprehensiveIncomeNetOfTax":{"label":"Comprehensive Income (Loss), Net of Tax, Attributable to Parent","description":"Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":69162,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2010-01-01","end":"2010-09-30","val":331475,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":108586,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":255506,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":824809,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2011-01-01","end":"2011-09-30","val":856310,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-12-31","val":706086,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":67362,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1"}]}},"DeferredIncomeTaxExpenseBenefit":{"label":"Deferred Income Tax Expense (Benefit)","description":"Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":-153660,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":-9598,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2011"}]}},"Deposits":{"label":"Deposits","description":"The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.","units":{"USD":[{"end":"2010-12-31","val":137583821,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2010Q4I"},{"end":"2010-12-31","val":137583821,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":137583821,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"end":"2011-06-30","val":138191197,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2011Q2I"},{"end":"2011-09-30","val":140671831,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":140824561,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q4I"},{"end":"2011-12-31","val":140824561,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28"},{"end":"2012-03-31","val":150056592,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1I"}]}},"DepositsMoneyMarketDeposits":{"label":"Deposits, Money Market Deposits","description":"Amount of deposits in accounts that offer many of the same services as checking accounts although transactions may be somewhat more limited, share some of the characteristics of a money market fund and are insured by the Federal government, also known as money market accounts.","units":{"USD":[{"end":"2010-12-31","val":4116167,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2010Q4I"},{"end":"2010-12-31","val":4116167,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":4116167,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"end":"2011-06-30","val":4411096,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2011Q2I"},{"end":"2011-09-30","val":4501983,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":4865739,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q4I"},{"end":"2011-12-31","val":4865739,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28"},{"end":"2012-03-31","val":6671263,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1I"}]}},"DepositsSavingsDeposits":{"label":"Deposits, Savings Deposits","description":"Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs).","units":{"USD":[{"end":"2010-12-31","val":14452567,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2010Q4I"},{"end":"2010-12-31","val":14452567,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":14452567,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"end":"2011-06-30","val":15693014,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2011Q2I"},{"end":"2011-09-30","val":15980576,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":16606425,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q4I"},{"end":"2011-12-31","val":16606425,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28"},{"end":"2012-03-31","val":18113451,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1I"}]}},"Depreciation":{"label":"Depreciation","description":"The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":118895,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2010-01-01","end":"2010-09-30","val":179265,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":238346,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":57767,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":112270,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2011-01-01","end":"2011-09-30","val":162608,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-12-31","val":211833,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":47965,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1"}]}},"DividendsCommonStockCash":{"label":"Dividends, Common Stock, Cash","description":"Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":117001,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2010-01-01","end":"2010-09-30","val":117001,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":117001,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":116501,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":116501,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2011-01-01","end":"2011-09-30","val":116501,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-12-31","val":116501,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":116502,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1"}]}},"EarningsPerShareBasic":{"label":"Earnings Per Share, Basic","description":"The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.","units":{"USD/shares":[{"start":"2010-01-01","end":"2010-12-31","val":1.97,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":1.3,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2011"}]}},"EarningsPerShareBasicAndDiluted":{"label":"Earnings Per Share, Basic and Diluted","description":"The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.","units":{"USD/shares":[{"start":"2010-01-01","end":"2010-06-30","val":-0.14,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2010-04-01","end":"2010-06-30","val":-1.02,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":0.87,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":1.01,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2011-01-01","end":"2011-03-31","val":0.76,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1.59,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2011-04-01","end":"2011-06-30","val":0.83,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":1.05,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":-0.54,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-03-31","val":0.56,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1"}]}},"EquipmentExpense":{"label":"Equipment Expense","description":"This element represents equipment expense including depreciation, repairs, rentals, and service contract costs. This item also includes equipment purchases which do not qualify for capitalization in accordance with the entity's accounting policy. This item may also include furniture expenses.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":180993,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2010-04-01","end":"2010-06-30","val":87612,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":270795,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":89802,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":357561,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":90780,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":182228,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2011-04-01","end":"2011-06-30","val":91448,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":269819,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":87591,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":362218,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":86368,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1"}]}},"FederalFundsSold":{"label":"Federal Funds Sold","description":"The amount outstanding of funds lent to other depository institutions, securities brokers, or securities dealers in the form of Federal Funds sold; for example, immediately available funds lent under agreements or contracts that mature in one business day or roll over under a continuing contract, regardless of the nature of the transaction or the collateral involved, excluding overnight lending for commercial and industrial purposes. Also include Federal Funds sold under agreements to resell on a gross basis, excluding (1) sales of term Federal Funds, (2) due bills representing purchases of securities or other assets by the reporting bank that have not yet been delivered and similar instruments, (3) resale agreements that mature in more than one business day involving assets other than securities, and (4) yield maintenance dollar repurchase agreements.","units":{"USD":[{"end":"2010-12-31","val":2004000,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2010Q4I"},{"end":"2010-12-31","val":2004000,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":2004000,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"end":"2011-06-30","val":1775000,"accn":"0001144204-11-045862","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2011Q2I"},{"end":"2011-09-30","val":6148000,"accn":"0001144204-11-063597","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":7738000,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q4I"},{"end":"2011-12-31","val":7738000,"accn":"0001144204-12-017621","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28"},{"end":"2012-03-31","val":4414000,"accn":"0001144204-12-028330","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1I"}]}},"FeesAndCommissionsDepositorAccounts":{"label":"Fees and Commissions, Depositor Accounts (Deprecated 2018-01-31)","description":"Includes amounts charged depositors for: (1) maintenance of their accounts (maintenance charges); (2) failure to maintain specified minimum balances on account; (3) exceeding the number of checks or transactions allowed to be processed in a given period; (4) checks drawn on no minimum balance deposit accounts; (5) withdrawals from nontransaction deposit accounts; (6) closing savings accounts before a specified minimum period of time has elapsed; (7) accounts which have remained inactive for extended periods of time or which have become dormant; (8) use of automated teller machines or remote service units; (9) checks drawn against insufficient funds that the bank assesses regardless of whether it decides to pay, return or hold the check; (10) issuing stop payment orders; (11) certifying checks; and (12) accumulating or disbursing funds deposited in IRAs or Keogh Plan accounts when not handled by the bank's trust department. This item does not include penalties assessed on the early withdrawal of time 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