Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Treasury Stock	Other Comprehensive Income (Loss)	Additional Paid-In Capital	Retained Earnings	Total
Beginning balance, shares at Dec. 31, 2018	29,611,989
Beginning treasury stock, shares at Dec. 31, 2018		(711,231)
Beginning balance at Dec. 31, 2018	$ 296	$ (6,540)	$ (52)	$ 179,742	$ (31,861)	$ 141,585
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation				2,753		$ 2,753
Exercise of stock options, shares	7,021					7,021
Exercise of stock options				35		$ 35
Issue restricted stock, shares	757,012
Issuance of restricted stock	$ 8			(8)
Forfeiture of restricted stock (in shares)	(72,627)
Forfeiture of restricted stock	$ (1)			1
Cash flow hedge			(993)			(993)
Net income (loss)					(5,359)	(5,359)
Ending balance, shares at Dec. 31, 2019	30,303,395
Ending treasury stock, shares at Dec. 31, 2019		(711,231)
Ending balance at Dec. 31, 2019	$ 303	$ (6,540)	(1,045)	182,523	(37,220)	138,021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation				1,998		$ 1,998
Exercise of stock options, shares						0
Issue restricted stock, shares	1,038,044
Issuance of restricted stock	$ 10			(10)
Forfeiture of restricted stock (in shares)	(107,383)
Purchase of vested stock-based awards, shares	(62,252)
Purchase of vested stock-based awards	$ (1)			(187)		$ (188)
Cash flow hedge			(557)			(557)
Net income (loss)					20,220	$ 20,220
Ending balance, shares at Dec. 31, 2020	31,171,804					31,171,804
Ending treasury stock, shares at Dec. 31, 2020		(711,231)				(711,231)
Ending balance at Dec. 31, 2020	$ 312	$ (6,540)	(1,602)	184,324	(17,000)	$ 159,494
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation				2,401		$ 2,401
Exercise of stock options, shares	28,546					28,546
Exercise of stock options				110		$ 110
Payments related to tax withholding for stock-based compensation, shares	(170,192)
Payments related to tax withholding for stock-based compensation	$ (2)			(947)		(949)
Issue restricted stock, shares	916,531
Issuance of restricted stock	$ 9			(9)
Forfeiture of restricted stock (in shares)	(234,232)
Forfeiture of restricted stock	$ (2)			2
Cash flow hedge			$ 1,602			1,602
Net income (loss)					(14,560)	$ (14,560)
Ending balance, shares at Dec. 31, 2021	31,712,457					31,712,457
Ending treasury stock, shares at Dec. 31, 2021		(711,231)				(711,231)
Ending balance at Dec. 31, 2021	$ 317	$ (6,540)		$ 185,881	$ (31,560)	$ 148,098