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Consolidated Statements of Shareholders' Equity (USD $)
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Total
Balance at Dec. 31, 2011 $ 384,000us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		 $ 105,051,000us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember		 $ (54,859,000)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember		 $ (160,000)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember		 $ 134,000us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember		 $ 50,550,000us-gaap_StockholdersEquity
Comprehensive loss            
Net income (loss)     (536,000)us-gaap_NetIncomeLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember		     (536,000)us-gaap_NetIncomeLoss
Unrealized holding gain (loss) on available for sale securities         (752,000)us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember		 (752,000)us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
Total comprehensive income (loss)           (1,288,000)us-gaap_ComprehensiveIncomeNetOfTax
Share-based compensation expense   306,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember		       306,000us-gaap_AllocatedShareBasedCompensationExpense
Issuance of restricted stock 1,000us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		 (1,000)us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember		        
Balance at Dec. 31, 2012 385,000us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		 105,356,000us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember		 (55,395,000)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember		 (160,000)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember		 (618,000)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember		 49,568,000us-gaap_StockholdersEquity
Comprehensive loss            
Net income (loss)     (7,289,000)us-gaap_NetIncomeLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember		     (7,289,000)us-gaap_NetIncomeLoss
Unrealized holding gain (loss) on available for sale securities         (569,000)us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember		 (569,000)us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
Total comprehensive income (loss)           (7,858,000)us-gaap_ComprehensiveIncomeNetOfTax
Share-based compensation expense   131,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember		       131,000us-gaap_AllocatedShareBasedCompensationExpense
Issuance of restricted stock 3,000us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		 (3,000)us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember		        
Balance at Dec. 31, 2013 388,000us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		 105,484,000us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember		 (62,684,000)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember		 (160,000)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember		 (1,187,000)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember		 41,841,000us-gaap_StockholdersEquity [1]
Comprehensive loss            
Net income (loss)     15,709,000us-gaap_NetIncomeLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember		     15,709,000us-gaap_NetIncomeLoss
Unrealized holding gain (loss) on available for sale securities         910,000us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember		 910,000us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
Total comprehensive income (loss)           16,619,000us-gaap_ComprehensiveIncomeNetOfTax
Share-based compensation expense   275,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember		       275,000us-gaap_AllocatedShareBasedCompensationExpense
Issuance of restricted stock 7,000us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		 (7,000)us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember		        
Balance at Dec. 31, 2014 $ 395,000us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		 $ 105,752,000us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember		 $ (46,975,000)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember		 $ (160,000)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember		 $ (277,000)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember		 $ 58,735,000us-gaap_StockholdersEquity [1]
[1] On March 4, 2015, the Company affected a 1-for-10 reverse stock split. All common stock data included in these financial statements has been restated to give effect to the reverse stock split.