CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY (Unaudited) - USD ($) $ in Thousands	Total		Common Stock	Additional Paid in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Balance at Dec. 31, 2014	$ 153,984			$ 294	$ 156,861	$ (3,171)
Balance, in shares at Dec. 31, 2014			33,000,000
Stock-based compensation expense	1,712			1,712
Net income	24,530				24,530
Foreign currency translation loss, net of tax	(2,406)	[1]				(2,406)
Balance at Mar. 31, 2015	$ 177,820			2,006	181,391	(5,577)
Balance, in shares at Mar. 31, 2015	33,000,000		33,000,000
Balance at Dec. 31, 2015	$ 205,968			9,924	200,853	(4,622)	$ (187)
Balance, in shares at Dec. 31, 2015	33,151,088		33,151,000				(29,000)
Stock-based compensation expense	$ 1,968			1,968
Shares issued under stock-based plans			46,000
Net income	9,863				9,863
Foreign currency translation loss, net of tax	(136)	[1]				(136)
Purchases of treasury shares, at cost	(58)						$ (58)
Treasury Stock Shares Acquired							(9,000)
Balance at Mar. 31, 2016	$ 217,605			$ 11,892	$ 210,716	$ (4,758)	$ (245)
Balance, in shares at Mar. 31, 2016	33,196,625		33,197,000				(38,000)

[1] Net of tax benefit of $77 and $1,190 for the three months ended March 31, 2016 and 2015, respectively.