Consolidated Statement of Stockholders' Equity (Unaudited) - 9 months ended Sep. 30, 2017 - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Additional Paid-In Capital	Retained Earnings
Balance, December 31, 2016, shares (in shares) at Dec. 31, 2016	28,405,850	28,405,850
Balance, December 31, 2016, Treasury stock, shares (in shares) at Dec. 31, 2016	(711,231)		(711,231)
Balance, December 31, 2016, amount at Dec. 31, 2016	$ 226,204	$ 283	$ (6,540)	$ (382)	$ 171,079	$ 61,764
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	$ 1,800				1,800
Exercise of stock options (in shares)	173,518	173,518
Exercise of stock options	$ 1,007	$ 2			1,005
Issuance of restricted stock (in shares)		345,913
Issuance of restricted stock	0	$ 3			(3)
Cash flow hedge (net of tax)	127			127
Forfeiture of restricted stock (in shares)		(13,374)
Net loss	$ (9,138)					(9,138)
Balance, March 31, 2017, shares (in shares) at Sep. 30, 2017	28,911,907
Balance, March 31, 2017, Treasury stock, shares (in shares) at Sep. 30, 2017	(711,231)		(711,231)
Balance, March 31, 2017, amount at Sep. 30, 2017	$ 220,683	$ 288	$ (6,540)	$ (255)	$ 173,881	53,309
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Deferred tax adjustment	$ 683					$ 683