STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data	Total	Common Stock		Additional Paid-in Capital	Treasury stock	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Beginning balance at Dec. 31, 2011	$ 200,920	$ 24		$ 191,945		$ (901)	$ 9,852
Beginning balance (in shares) at Dec. 31, 2011		23,543,746
Net income (loss)	13,685						13,685
Other comprehensive income	1,261					1,261
Equity-based compensation	5,083			5,083
Tax benefit related to exercise of stock options	672			672
Issuance of Common stock upon exercise of stock-based awards, (in shares)		51,414
Issuance of Common stock upon exercise of stock-based awards	795		[1]	795
Purchase of Treasury stock, (in shares)	(1,482,548)	(1,482,548)
Purchase of Treasury stock	(27,168)	(2)			(27,166)
Issuance of Treasury stock upon exercise of stock-based awards (in shares)		74,755
Issuance of Treasury stock upon exercise of stock-based awards	820		[1]		1,472		(652)
Accumulated other comprehensive income (loss), net	360
Ending balance at Dec. 31, 2012	196,068	22		198,495	(25,694)	360	22,885
Ending balance (in shares) at Dec. 31, 2012		22,187,367
Net income (loss)	6,685						6,685
Other comprehensive income	(441)					(441)
Equity-based compensation	5,920			5,920
Purchase of Treasury stock, (in shares)	(1,257,004)	(1,257,004)
Purchase of Treasury stock	(19,816)	(1)			(19,815)
Issuance of Treasury stock upon exercise of stock-based awards (in shares)		251,367
Issuance of Treasury stock upon exercise of stock-based awards	2,479		[1]		4,504		(2,025)
Accumulated other comprehensive income (loss), net	(81)
Ending balance at Dec. 31, 2013	190,895	21		204,415	(41,005)	(81)	27,545
Ending balance (in shares) at Dec. 31, 2013	21,181,730	21,181,730
Net income (loss)	(819)						(819)
Other comprehensive income	(355)					(355)
Equity-based compensation	5,011			5,011
Purchase of Treasury stock, (in shares)	(1,227,148)	(1,227,148)
Purchase of Treasury stock	(18,657)	(1)			(18,656)
Issuance of Treasury stock upon exercise of stock-based awards (in shares)		297,908
Issuance of Treasury stock upon exercise of stock-based awards	2,974		[1]		4,953		(1,979)
Accumulated unrealized loss from available-for-sale securities, net of taxes						(379)
Accumulated unrealized loss from hedging activities, net of taxes						(57)
Accumulated other comprehensive income (loss), net	(436)					(436)
Ending balance at Dec. 31, 2014	$ 179,049	$ 20		$ 209,426	$ (54,708)	$ (436)	$ 24,747
Ending balance (in shares) at Dec. 31, 2014	20,252,490	20,252,490

[1] Represent an amount lower than $1.