Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Assets
Investment securities - available-for-sale, at fair value, securities pledged to creditors with the right to sell or repledge	$ 34,206	$ 35,009
Loans, allowance for loan losses	$ 10,408	$ 11,039
Stockholders' Equity:
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	16,000,000	16,000,000
Common stock, issued (in shares)	9,144,998	9,103,158
Common stock, outstanding (in shares)	9,144,998	9,103,158
Preferred Stock, Par Value [Member]
Stockholders' Equity:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, Per share liquidation Preference (in dollars per share)	$ 1,000	$ 1,000
Preferred stock, authorized (in shares)	18,500	18,500
Preferred stock, issued (in shares)	0	17,390
Preferred stock, outstanding (in shares)	0	17,390
Preferred Stock, No Par Value [Member]
Stockholders' Equity:
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, Per share liquidation Preference (in dollars per share)	$ 1,000	$ 1,000
Preferred stock, authorized (in shares)	22,847	22,847
Preferred stock, issued (in shares)	22,847	0
Preferred stock, outstanding (in shares)	22,847	0