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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":"2011-07-29","val":200040,"accn":"0000891092-11-005435","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-10-31","val":500040,"accn":"0000891092-11-007519","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2012-03-22","val":400040,"accn":"0000891092-12-001688","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-23","frame":"CY2012Q1I"},{"end":"2012-04-30","val":400040,"accn":"0000891092-12-002865","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-15"},{"end":"2012-08-01","val":400040,"accn":"0000891092-12-004680","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-11-01","val":400040,"accn":"0000891092-12-006762","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-15","frame":"CY2012Q3I"},{"end":"2013-03-01","val":300040,"accn":"0000891092-13-002623","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-26","frame":"CY2013Q1I"},{"end":"2013-05-01","val":300040,"accn":"0000891092-13-004603","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-15"},{"end":"2013-08-01","val":300040,"accn":"0000891092-13-007106","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-14","frame":"CY2013Q2I"},{"end":"2013-11-01","val":400040,"accn":"0000891092-13-009410","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-14","frame":"CY2013Q3I"}]}},"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":5230000,"accn":"0000891092-12-001688","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-23","frame":"CY2011Q2I"},{"end":"2012-06-30","val":6165000,"accn":"0000891092-13-002623","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-26","frame":"CY2012Q2I"}]}}},"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. 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For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred 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of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.","units":{"USD":[{"end":"2010-12-31","val":1000,"accn":"0000891092-12-001688","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-23","frame":"CY2010Q4I"},{"end":"2011-06-30","val":5800699,"accn":"0000891092-11-005435","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":27646875,"accn":"0000891092-11-007519","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":13835900,"accn":"0000891092-13-002623","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":13835900,"accn":"0000891092-12-006762","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-15"},{"end":"2011-12-31","val":13835900,"accn":"0000891092-12-004680","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":13835900,"accn":"0000891092-12-002865","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-15"},{"end":"2011-12-31","val":13835900,"accn":"0000891092-12-001688","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-23"},{"end":"2012-03-31","val":10401671,"accn":"0000891092-12-002865","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-15","frame":"CY2012Q1I"},{"end":"2012-06-30","val":9530188,"accn":"0000891092-12-004680","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":9424313,"accn":"0000891092-12-006762","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-15","frame":"CY2012Q3I"},{"end":"2012-12-31","val":6683753,"accn":"0000891092-13-009410","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-14","frame":"CY2012Q4I"},{"end":"2012-12-31","val":6683753,"accn":"0000891092-13-007106","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-14"},{"end":"2012-12-31","val":6683753,"accn":"0000891092-13-004603","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-15"},{"end":"2012-12-31","val":6683753,"accn":"0000891092-13-002623","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-26"},{"end":"2013-03-31","val":4633335,"accn":"0000891092-13-004603","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-15","frame":"CY2013Q1I"},{"end":"2013-06-30","val":3119253,"accn":"0000891092-13-007106","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-14","frame":"CY2013Q2I"},{"end":"2013-09-30","val":3132875,"accn":"0000891092-13-009410","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-14","frame":"CY2013Q3I"}]}},"Cash":{"label":"Cash","description":"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. Excludes cash and cash equivalents within disposal group and discontinued operation.","units":{"USD":[{"end":"2010-12-31","val":1000,"accn":"0000891092-13-002623","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-26","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1000,"accn":"0000891092-12-001688","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-23"},{"end":"2011-02-21","val":1000,"accn":"0000891092-12-006762","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-15"},{"end":"2011-02-21","val":1000,"accn":"0000891092-12-004680","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-02-21","val":1000,"accn":"0000891092-12-002865","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-15"},{"end":"2011-02-21","val":1000,"accn":"0000891092-11-007519","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2011-02-21","val":1000,"accn":"0000891092-11-005435","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2011-03-31","val":1000,"accn":"0000891092-12-002865","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-15","frame":"CY2011Q1I"},{"end":"2011-06-30","val":17704,"accn":"0000891092-12-004680","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2I"},{"end":"2011-06-30","val":17704,"accn":"0000891092-11-005435","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"}]}},"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":"2011-02-22","end":"2011-06-30","val":16704,"accn":"0000891092-12-004680","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-02-22","end":"2011-06-30","val":16704,"accn":"0000891092-11-005435","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-02-22","end":"2011-09-30","val":-1000,"accn":"0000891092-12-006762","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-15"},{"start":"2011-02-22","end":"2011-09-30","val":-1000,"accn":"0000891092-11-007519","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-1000,"accn":"0000891092-13-002623","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-26","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-1000,"accn":"0000891092-12-001688","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-23"}]}},"CommonStockSharesIssued":{"label":"Common 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. 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