Condensed Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]
Balance, Beginning at Dec. 31, 2011	$ 75,723	$ 143	$ 46,727	$ 28,853
Balance Beginning, shares at Dec. 31, 2011		14,257,324
Stock issued for director compensation	346		346
Stock issued for director compensation , shares		48,148
Stock-based compensation	191		191
Shares issued upon vesting of restricted stock units		8,380
Warrants exercised		6,367
Stock options exercised	238	2	236
Stock options exercised, shares		150,000
Common stock dividends ($0.24 and $0.18 for year 2012 and 2013 respectively)	(3,457)			(3,457)
Net income	9,351			9,351
Balance, Ending at Dec. 31, 2012	82,392	145	47,500	34,747
Balance Ending, shares at Dec. 31, 2012		14,470,219
Stock issued for director compensation	361		361
Stock issued for director compensation , shares		45,792
Stock-based compensation	175		175
Repurchase of common stock	(708)	(1)	(707)
Repurchase of common stock, shares		(97,153)
Shares issued upon vesting of restricted stock units		16,640
Stock options exercised, shares	0
Common stock dividends ($0.24 and $0.18 for year 2012 and 2013 respectively)	(2,628)			(2,628)
Net income	7,312			7,312
Balance, Ending at Sep. 30, 2013	$ 86,904	$ 144	$ 47,329	$ 39,431
Balance Ending, shares at Sep. 30, 2013		14,435,498