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Junior Subordinated Debentures and Other Borrowings (Details) (USD $)
3 Months Ended 9 Months Ended 9 Months Ended 0 Months Ended 3 Months Ended 0 Months Ended
Sep. 30, 2013
Sep. 30, 2013
Dec. 31, 2012
Sep. 30, 2013
Floating Rate Junior Subordinated Debentures
Mar. 17, 2004
Floating Rate Junior Subordinated Debentures
Feb. 28, 2010
Line of Credit
Aug. 22, 2013
Line of Credit
Recapitalization of the Company
payment
Sep. 30, 2013
Line of Credit
Recapitalization of the Company
Aug. 22, 2013
Line of Credit
Recapitalization of the Company
Series F non-cumulative preferred stock
Junior subordinated debentures and other borrowings                  
Face amount of debt issued $ 6,000,000 $ 6,000,000 $ 6,000,000   $ 6,000,000        
Line of credit outstanding 5,000,000 5,000,000       5,000,000 2,400,000    
Line of credit borrowing capacity           5,000,000      
Accrued interest 674,000 674,000 1,941,000 609,000          
Number of shares issued in the Debt Exchange                 2,575
Value of shares issued in the Debt Exchange                 2,600,000
Principal amount of debt converted                 2,600,000
Accrued interest forgiven             1,800,000    
Number of quarterly payments of interest only, beginning three months following the closing of the recapitalization             6    
Period following closing of recapitalization for commencement of quarterly interest only payments             3 months    
Number of fully amortizing monthly payments of principal and interest, beginning 19 months following the closing of the recapitalization             48    
Period following closing of recapitalization for commencement of fully amortizing equal monthly payments of principal and interest             19 months    
Debt instrument interest rate description       3-month LIBOR   Prime Rate Prime Rate    
Basis spread (as a percent)       2.54%   1.00% 2.00%    
Effective interest rate on debentures (as a percent)       2.79%          
Floor rate (as a percent)           6.00% 6.00%    
Default rate margin forgiven (as a percent)             5.00%    
Percentage of line of credit secured by investment in bank             100.00%    
Gain on restructuring of debt 1,221,000 1,221,000           1,200,000  
Increase in principal balance on restructuring of debt               $ 535,000