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Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2011-12-31","val":65000,"accn":"0001144204-13-019268","fy":2012,"fp":"FY","form":"10-K","filed":"2013-04-01","frame":"CY2011Q4I"},{"end":"2011-12-31","val":65000,"accn":"0001144204-12-064278","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-20"},{"end":"2011-12-31","val":65000,"accn":"0001144204-12-044891","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-13"},{"end":"2012-06-30","val":27000,"accn":"0001144204-12-044891","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-13","frame":"CY2012Q2I"},{"end":"2012-09-30","val":41000,"accn":"0001144204-12-064278","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-20","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1000,"accn":"0001144204-13-040678","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-23","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1000,"accn":"0001144204-13-028710","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-14"},{"end":"2012-12-31","val":1000,"accn":"0001144204-13-019268","fy":2012,"fp":"FY","form":"10-K","filed":"2013-04-01"},{"end":"2013-03-31","val":9000,"accn":"0001144204-13-028710","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-14","frame":"CY2013Q1I"},{"end":"2013-06-30","val":17000,"accn":"0001144204-13-040678","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-23","frame":"CY2013Q2I"}]}},"AccruedLiabilitiesCurrent":{"label":"Accrued Liabilities, Current","description":"Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2012-12-31","val":1684000,"accn":"0001193125-13-442157","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-14"},{"end":"2012-12-31","val":1684000,"accn":"0001144204-14-019387","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31","frame":"CY2012Q4I"},{"end":"2013-09-30","val":1284000,"accn":"0001193125-13-442157","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-14","frame":"CY2013Q3I"},{"end":"2013-12-31","val":703000,"accn":"0001144204-14-019387","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31"},{"end":"2013-12-31","val":703000,"accn":"0001144204-14-031205","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-15"},{"end":"2013-12-31","val":703000,"accn":"0001144204-14-048988","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-12"},{"end":"2013-12-31","val":703000,"accn":"0001144204-14-067439","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-13"},{"end":"2013-12-31","val":703000,"accn":"0001144204-15-015811","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-13","frame":"CY2013Q4I"},{"end":"2014-03-31","val":570000,"accn":"0001144204-14-031205","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-15","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1341000,"accn":"0001144204-14-048988","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-12","frame":"CY2014Q2I"},{"end":"2014-09-30","val":981000,"accn":"0001144204-14-067439","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-13","frame":"CY2014Q3I"},{"end":"2014-12-31","val":711000,"accn":"0001144204-15-015811","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-13"},{"end":"2014-12-31","val":711000,"accn":"0001144204-15-029926","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":711000,"accn":"0001144204-15-046855","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-06"},{"end":"2014-12-31","val":711000,"accn":"0001144204-15-064173","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-10"},{"end":"2014-12-31","val":711000,"accn":"0001144204-16-088249","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-15","frame":"CY2014Q4I"},{"end":"2015-03-31","val":630000,"accn":"0001144204-15-029926","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":668000,"accn":"0001144204-15-046855","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-06","frame":"CY2015Q2I"},{"end":"2015-09-30","val":634000,"accn":"0001144204-15-064173","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-10","frame":"CY2015Q3I"},{"end":"2015-12-31","val":504000,"accn":"0001144204-16-088249","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-15"},{"end":"2015-12-31","val":504000,"accn":"0001144204-16-100264","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":504000,"accn":"0001144204-16-117281","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-08"},{"end":"2015-12-31","val":504000,"accn":"0001144204-16-132091","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-07"},{"end":"2015-12-31","val":504000,"accn":"0001144204-17-006508","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-07","frame":"CY2015Q4I"},{"end":"2016-03-31","val":666000,"accn":"0001144204-16-100264","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1384000,"accn":"0001144204-16-117281","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-08","frame":"CY2016Q2I"},{"end":"2016-09-30","val":488000,"accn":"0001144204-16-132091","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-07","frame":"CY2016Q3I"},{"end":"2016-12-31","val":461000,"accn":"0001144204-17-006508","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-07"},{"end":"2016-12-31","val":461000,"accn":"0001437749-17-008081","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":461000,"accn":"0001437749-17-013697","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":461000,"accn":"0001437749-17-017771","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-10-30"},{"end":"2016-12-31","val":461000,"accn":"0001437749-18-001531","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-02","frame":"CY2016Q4I"},{"end":"2017-03-31","val":428000,"accn":"0001437749-17-008081","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":215000,"accn":"0001437749-17-013697","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":90000,"accn":"0001437749-17-017771","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-10-30","frame":"CY2017Q3I"},{"end":"2017-12-31","val":229000,"accn":"0001437749-18-001531","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-02"},{"end":"2017-12-31","val":229000,"accn":"0001437749-18-008761","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-07"},{"end":"2017-12-31","val":229000,"accn":"0001437749-18-014592","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-06"},{"end":"2017-12-31","val":229000,"accn":"0001437749-18-018871","fy":2018,"fp":"Q3","form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Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2011-12-31","val":57000,"accn":"0001144204-13-019268","fy":2012,"fp":"FY","form":"10-K","filed":"2013-04-01","frame":"CY2011Q4I"},{"end":"2011-12-31","val":57000,"accn":"0001144204-12-064278","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-20"},{"end":"2011-12-31","val":57000,"accn":"0001144204-12-044891","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-13"},{"end":"2012-06-30","val":55000,"accn":"0001144204-12-044891","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-13","frame":"CY2012Q2I"},{"end":"2012-09-30","val":60000,"accn":"0001144204-12-064278","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-20","frame":"CY2012Q3I"},{"end":"2012-12-31","val":64000,"accn":"0001144204-13-040678","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-23","frame":"CY2012Q4I"},{"end":"2012-12-31","val":64000,"accn":"0001144204-13-028710","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-14"},{"end":"2012-12-31","val":64000,"accn":"0001144204-13-019268","fy":2012,"fp":"FY","form":"10-K","filed":"2013-04-01"},{"end":"2013-03-31","val":50000,"accn":"0001144204-13-028710","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-14","frame":"CY2013Q1I"},{"end":"2013-06-30","val":10000,"accn":"0001144204-13-040678","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-23","frame":"CY2013Q2I"}]}},"AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment":{"label":"Accumulated 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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. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred 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to Additional Paid in Capital, Other","description":"Amount of other increase (decrease) in additional paid in capital 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Share-based Payment Arrangement, ESPP, Increase for Cost Recognition","description":"Amount of increase in additional paid-in capital (APIC) for recognition of cost for employee stock purchase program (ESPP) award under share-based payment arrangement.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":31000,"accn":"0001144204-12-018897","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-30","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":16000,"accn":"0001144204-12-018897","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-30"},{"start":"2010-01-01","end":"2010-12-31","val":16000,"accn":"0001144204-13-019268","fy":2012,"fp":"FY","form":"10-K","filed":"2013-04-01","frame":"CY2010"},{"start":"2013-01-01","end":"2013-12-31","val":212000,"accn":"0001144204-14-019387","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31"},{"start":"2013-01-01","end":"2013-12-31","val":212000,"accn":"0001144204-15-015811","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-13","frame":"CY2013"}]}},"AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationNonvestedSharesRequisiteServicePeriodRecognition":{"label":"Adjustments to Additional Paid in Capital, Share-based Compensation, Nonvested Shares, Requisite 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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 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