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	3,706	0	0	3,706
Stock options issued to consultants for services	0	89	0	0	89
Options exercised	0	23	0	0	23
Options exercised (in shares)	3,750
Other comprehensive income	0	0	0	92	92
Retirement of company stock	(11)	(18,971)	0	0	(18,982)
Retirement of common stock (in shares)	(1,171,682)
Net income	0	0	15,192	0	15,192
BALANCE at Sep. 30, 2013	$ 199	$ 115,801	$ 50,494	$ 953	$ 167,447
BALANCE (in shares) at Sep. 30, 2013	19,876,015				19,876,015

[1] Restated