Consolidated Statements of Stockholders Equity - USD ($) $ in Thousands		Total	Common Stock	Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss
Beginning balance (Previously Reported) at Dec. 31, 2016		$ 133,251	$ 111	$ 44,098	$ 133,667	$ (19,336)	$ (25,289)
Increase (Decrease) in Stockholders' Equity
Net income	[1]	5,361
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment		6,024
Unrealized derivative (loss) gain on cash flow hedge		426
Ending balance at Dec. 31, 2017		154,496	111	45,017	145,797	(18,662)	(17,767)
Increase (Decrease) in Stockholders' Equity
Net income		(31,168)			(31,168)
Other comprehensive income (loss), net of tax:
Pension liability adjustment		(472)					(472)
Foreign currency translation adjustment		(4,405)					(4,405)
Unrealized derivative (loss) gain on cash flow hedge		453					453
Issuance of common shares net of shares withheld for taxes		(316)		(813)		497
Stock-based compensation and related excess tax benefit		3,836		3,836
Ending balance at Dec. 31, 2018		$ 122,119	$ 111	$ 48,040	$ 114,324	$ (18,165)	$ (22,191)

[1] The balances as of January 1, 2017 and the year ended December 31, 2017 amounts have been adjusted to reflect the change in inventory accounting method, as described in Notes 1 and 6 to the Consolidated Financial Statements.