Consolidated Statement of Stockholders' Equity (Unaudited) - 6 months ended Jun. 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	$ 1,207				1,207
Exercise of stock options (in shares)	159,808	159,808
Exercise of stock options	$ 940	$ 2			938
Issuance of restricted stock (in shares)		345,913
Issuance of restricted stock	0	$ 3			(3)
Cash flow hedge (net of tax)	110			110
Forfeiture of restricted stock (in shares)		(7,005)
Net income	$ (4,101)					(4,101)
Balance, March 31, 2017, shares (in shares) at Jun. 30, 2017	28,904,566
Balance, March 31, 2017, Treasury stock, shares (in shares) at Jun. 30, 2017	(711,231)		(711,231)
Balance, March 31, 2017, amount at Jun. 30, 2017	$ 225,043	$ 288	$ (6,540)	$ (272)	$ 173,221	58,346
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Deferred tax adjustment	$ 683					$ 683