CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (loss) [Member]	Total
BALANCE at Dec. 31, 2012	$ 210	$ 130,954	$ 35,302	$ 861	$ 167,327	[1]
BALANCE (in shares) at Dec. 31, 2012	21,043,947				21,043,947
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation related to stock options and restricted stock	0	2,491	0	0	2,491
Stock options issued to consultants for services	0	93	0	0	93
Options exercised	0	23	0	0	23
Options exercised (in shares)	3,750
Other comprehensive loss	0	0	0	(1,792)	(1,792)
Retirement of company stock	(3)	(5,378)	0	0	(5,381)
Retirement of common stock (in shares)	(324,758)
Net income	0	0	14,306	0	14,306
BALANCE at Jun. 30, 2013	$ 207	$ 128,183	$ 49,608	$ (931)	$ 177,067
BALANCE (in shares) at Jun. 30, 2013	20,722,939				20,722,939

[1] Restated