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1/1/2011 - 3/31/2011
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1/1/2011 - 3/31/2011
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Publisher FASB
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-Publisher SEC
-Name Regulation S-X (SX)
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-Section 04
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Publisher SEC
-Name Regulation S-X (SX)
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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falsefalse4false0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegatedlabel1truefalsefalse-19000-19falsefalsefalsefalsefalseSharesxbrli:sharesItemTypesharesFor presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.Reference 1: http://www.xbrl.org/2003/role/presentationRef
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falsefalse5false0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumberus-gaaptruenainstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsetruefalseperiodendlabel1truefalsefalse1113400011134falsefalsefalsefalsefalseSharesxbrli:sharesItemTypesharesThe number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-Publisher FASB
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1/1/2011 - 3/31/2011
USD ($) / shares
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Subparagraph (c)(1)(iv)(3)-(4)
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