v2.4.0.6
Debt (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
fhlb_advances
Dec. 31, 2011
Nov. 21, 2011
Jun. 28, 2012
Series C Convertible Preferred Stock [Member]
Dec. 31, 2011
Series C Convertible Preferred Stock [Member]
May 13, 2011
Series C Convertible Preferred Stock [Member]
Mar. 02, 2011
Series C Convertible Preferred Stock [Member]
Feb. 11, 2011
Series C Convertible Preferred Stock [Member]
Debt Disclosure [Abstract]                
Securities Sold Under Agreements to Repurchase Weighted Average Rate 0.07%              
Minimum amount pledeged per agreements 133.00%              
Balance of FHLB Letters of Credit held $ 0              
Number of Federal Home Loan Bank, Advances, Maturities 1              
Long-term Federal Home Loan Bank Advances 5,000 19,750            
Federal Home Loan Bank Advances Interest Rate 4.58%              
Federal Home Loan Bank Advances, Original Maturity Term 10-year              
Class of Stock [Line Items]                
Preferred Stock, shares subscribed, value               27,500
Promissory notes aggregate principal amount     8,250          
Preferred Stock issued during period, value 52,035 43,785   8,250 19,250 5,490 2,750 11,010
Maturities of Long-term Debt [Abstract]                
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 0              
Long-term Debt, Maturities, Repayments of Principal in Year Two 0              
Long-term Debt, Maturities, Repayments of Principal in Year Three 0              
Long-term Debt, Maturities, Repayments of Principal in Year Four 5,000              
Long-term Debt, Maturities, Repayments of Principal in Year Five 0              
Long-term Debt, Maturities, Repayments of Principal after Year Five 20,625              
Long-term Debt $ 25,625