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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Stockholders' equity    
Preferred stock, par value (in dollars per share) $ 0us-gaap_PreferredStockNoParValue $ 0us-gaap_PreferredStockNoParValue
Preferred stock, liquidation preference $ 1,000us-gaap_PreferredStockLiquidationPreferenceValue $ 1,000us-gaap_PreferredStockLiquidationPreferenceValue
Preferred stock, dividend rate (in hundredths) 5.00%us-gaap_PreferredStockDividendRatePercentage 5.00%us-gaap_PreferredStockDividendRatePercentage
Preferred stock, shares authorized (in shares) 1,000,000us-gaap_PreferredStockSharesAuthorized 1,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued (in shares) 0us-gaap_PreferredStockSharesIssued 12,000us-gaap_PreferredStockSharesIssued
Preferred stock, shares outstanding (in shares) 0us-gaap_PreferredStockSharesOutstanding 12,000us-gaap_PreferredStockSharesOutstanding
Common stock, par value (in dollars per share) $ 0us-gaap_CommonStockNoParValue $ 0us-gaap_CommonStockNoParValue
Common stock, shares authorized (in shares) 20,000,000us-gaap_CommonStockSharesAuthorized 20,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued (in shares) 8,142,056us-gaap_CommonStockSharesIssued 8,038,345us-gaap_CommonStockSharesIssued
Common stock, shares outstanding (in shares) 8,142,056us-gaap_CommonStockSharesOutstanding 8,038,345us-gaap_CommonStockSharesOutstanding