Consolidated Statements of Shareholders' Equity (unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	Preferred Stock Series B [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2011	$ 32,000	$ 1,062	$ 98,842	$ 7,752	$ (3,286)	$ 25,467	$ 161,837	[1]
Balance (in shares) at Dec. 31, 2011	32,000	10,615,983
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings						5,364	5,364
Dividends on Series B Preferred Stock						(780)	(780)
Dividends on common stock, $0.14 per share						(1,465)	1,465
Exercise of stock options		1	64				65
Exercise of stock options (in shares)		9,998
Stock option and restricted stock compensation expense	0		57				57
Change in accumulated other comprehensive income				762			762
Balance at Jun. 30, 2012	$ 32,000	$ 1,063	$ 98,963	$ 8,514	$ (3,286)	$ 28,586	$ 165,840
Balance (in shares) at Jun. 30, 2012	32,000	10,625,981

[1] Derived from audited financial statements.