Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Statement Of Financial Position [Abstract]
Allowance for loan losses (in dollars)	$ 3,564	$ 4,003
Preferred stock, liquidation preference per share (in dollars per share)	$ 1,000	$ 1,000
Preferred stock, no par value (in dollars per share)
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, shares issued	5,000	5,000
Preferred stock, shares outstanding	5,000	5,000
Common stock, no par value
Common stock, shares authorized	5,000,000	5,000,000
Common stock, shares issued	1,524,872	1,514,472
Common stock, shares outstanding	1,524,872	1,514,472