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Note 18 - Income Taxes (Details) - Reconciliation of Beginning and Ending Valuation Allowance (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Reconciliation of Beginning and Ending Valuation Allowance [Abstract]      
Balance at beginning of the year $ 114,806us-gaap_DeferredTaxAssetsValuationAllowance $ 113,596us-gaap_DeferredTaxAssetsValuationAllowance $ 61,500us-gaap_DeferredTaxAssetsValuationAllowance
Additions to deferred income tax expense (3,526)us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount 1,210us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount 52,096us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Balance at end of the year $ 111,280us-gaap_DeferredTaxAssetsValuationAllowance $ 114,806us-gaap_DeferredTaxAssetsValuationAllowance $ 113,596us-gaap_DeferredTaxAssetsValuationAllowance