CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY AND OTHER COMPREHENSIVE INCOME (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Additional Paid-in Capital	Accumulated Retained Earnings (Deficit)	Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2010	$ 78,602	$ 100	$ 79,942	$ (526)	$ (914)
Balance (in shares) at Dec. 31, 2010		10,033,836
Increase (Decrease) in Stockholders' Equity
Total comprehensive income	9,442			8,017	1,425
Share-based compensation expense	204		204
Common stock repurchased and retired	(70)	(1)	(69)
Common stock repurchased and retired (in shares)		(10,610)
Warrants purchased and retired	(3,660)		(3,660)
Warrants exercised	32	1	31
Warrants exercised (in shares)		41,400
Stock options exercised	70	1	69
Stock options exercised (in shares)		20,000
Balance at Sep. 30, 2011	84,620	101	76,517	7,491	511
Balance (in shares) at Sep. 30, 2011	10,084,626	10,084,626
Balance at Dec. 31, 2011	86,777	103	76,310	10,046	318
Balance (in shares) at Dec. 31, 2011	10,337,626	10,337,626
Increase (Decrease) in Stockholders' Equity
Total comprehensive income	13,005			11,965	1,040
Share-based compensation expense	96		96
Common stock repurchased and retired	(102)		(102)
Common stock repurchased and retired (in shares)		(13,022)
Stock options exercised	110		110
Stock options exercised (in shares)		18,830
Balance at Sep. 30, 2012	$ 99,886	$ 103	$ 76,414	$ 22,011	$ 1,358
Balance (in shares) at Sep. 30, 2012	10,343,434	10,343,434