Long-Term Debt and Other Borrowed Funds (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Parent Company	Dec. 31, 2011 Parent Company	Dec. 31, 2012 Subordinated Debt Subordinated Term Loan, 6.81% Parent Company	Dec. 31, 2011 Subordinated Debt Subordinated Term Loan, 6.81% Parent Company	Jan. 10, 2008 Subordinated Debt Subordinated Term Loan, 6.81% Parent Company	Dec. 31, 2012 Subordinated Debt Subordinated Term Loan, Variable Rate Subsidiaries	Dec. 31, 2011 Subordinated Debt Subordinated Term Loan, Variable Rate Subsidiaries	Feb. 28, 2008 Subordinated Debt Subordinated Term Loan, Variable Rate Subsidiaries	Dec. 31, 2012 Subordinated Debt Subordinated Term Loan, Variable Rate Subsidiaries LIBOR	Dec. 31, 2012 Notes Payable to Banks Notes Payable to FHLB Subsidiaries	Dec. 31, 2011 Notes Payable to Banks Notes Payable to FHLB Subsidiaries	Dec. 31, 2012 Capital Lease Obligations Capital Lease Obligation, 8.00% Subsidiaries	Dec. 31, 2011 Capital Lease Obligations Capital Lease Obligation, 8.00% Subsidiaries	Dec. 31, 2011 Federal Home Loan Bank Notes Payable to FHLB	Dec. 31, 2012 Federal Home Loan Bank Notes Payable to FHLB Subsidiaries	Dec. 31, 2012 Federal Funds Purchased	Dec. 31, 2012 Federal Reserve Bank Advances
Debt Instrument
Long-term debt			$ 20,000	$ 20,000	$ 20,000	$ 20,000		$ 15,000	$ 15,000			$ 425	$ 425
Capital Lease Obligations														1,735	1,775
Long-term debt and capital lease obligations	37,160	37,200
Fiscal Year Maturities of Long-term Debt [Abstract]
2013	244
2014	49
2015	285
2016	65
2017	71
Thereafter	36,446
Long-term debt and capital lease obligations	37,160	37,200
Debt instrument, face amount							20,000			15,000
Debt instrument, basis spread on variable rate											2.00%
Debt instrument, interest rate, stated percentage					6.81%		6.81%							8.00%
Debt instrument, interest rate at period end								2.52%
FHLB, advances, maximum amount available																	624,959
FHLB, advances, weighted average interest rate												4.83%
Long-term FHLB advances																425	425
Other borrowings	32	7
Line of credit facility, maximum borrowing capacity																		$ 115,000	$ 323,153