Fair Value Information (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Carrying Amount [Member]
Financial assets:
Cash and cash equivalents	$ 34,772	$ 42,185
Federal funds sold	253	287
Securities available for sale	76,054	90,344
Loans held for sale	1,624	1,088
Loans, net of allowance for loan losses	344,041	327,392
Accrued interest receivable	1,826	2,148
Financial liabilities:
Deposits	(417,547)	(420,511)
Securities sold under agreements to repurchase and overnight borrowings	(14,214)	(18,074)
Other borrowings	(7,448)	(7,751)
Subordinated debentures	(5,155)	(5,155)
Accrued interest payable	(112)	(131)
Fair Value [Member]
Financial assets:
Cash and cash equivalents	34,772	42,185
Federal funds sold	253	287
Securities available for sale	76,054	90,344
Loans held for sale	1,624	1,088
Loans, net of allowance for loan losses	348,520	333,283
Accrued interest receivable	1,826	2,148
Financial liabilities:
Deposits	(419,093)	(422,493)
Securities sold under agreements to repurchase and overnight borrowings	(14,214)	(18,074)
Other borrowings	(7,491)	(7,860)
Subordinated debentures	(5,155)	(5,155)
Accrued interest payable	$ (112)	$ (131)