CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock [Member]	Additional Paid-In Capital [Member]	Loans to purchase company stock [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Total
BALANCE at Dec. 31, 2008	$ 103	$ 13,930	$ (79)	$ 0	$ (879)	$ 0	$ 13,075
BALANCE (in shares) at Dec. 31, 2008	10,331,897
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of adjustment from the adoption of the accounting for uncertainty in income taxes	0		0	0	(2,500)	0	(2,500)
Share-based compensation expense	0	1,043	0	0	0	0	1,043
Repayment of loan to purchase Company stock	0	0	79	0	0	0	79
Purchase of Company Stock	0	(75)		0	0	0	(75)
Purchase of Company Stock (in shares)	(75,533)
Net income (loss)	0	0			5,285	0	5,285
BALANCE at Dec. 31, 2009	103	14,898	0	0	1,906	0	16,907
BALANCE (in shares) at Dec. 31, 2009	10,256,364
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	0	392	0	0		0	392
Net income (loss)	0	0	0	0	11,601	0	11,601
BALANCE at Dec. 31, 2010	103	15,290	0	0	13,507	0	28,900
BALANCE (in shares) at Dec. 31, 2010	10,256,364						10,256,364
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of Company Stock	0	0	0	(250)	0	0	(250)
Change in cumulative translation adjustment	0	0	0	0	0	2	2
Purchase of Company Stock (in shares)							16,056
Net income (loss)	0	0	0	0	(694)	0	(694)
Exercise of stock options	28	382	0	0	0	0	410
Exercise of stock options (in shares)	2,783,303
Stock-based compensation related to stock options and restricted stock	0	7,774	0	0	0	0	7,774
Stock-based compensation - grant of Common stock	20	13,843	0	0	0	0	13,863
Issuance of Common stock (in shares)	2,045,571
Reverse merger acquisition	37	62,036	0	0	0	0	62,073
Reverse merger acquisition (in shares)	3,736,490
BALANCE at Dec. 31, 2011	$ 188	$ 99,325	$ 0	$ (250)	$ 12,813	$ 2	$ 112,078
BALANCE (in shares) at Dec. 31, 2011	18,821,728						18,821,728