CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss	Total
Balances at Dec. 31, 2015					$ (27,496)
Increase (Decrease) in Stockholders' Equity
Net loss						$ (6,103)
Other comprehensive income, net of tax					(2,231)	(2,231)
Dividends declared on common stock						(2,088)
Balances at Mar. 31, 2016					(29,727)
Balances at Dec. 31, 2016	$ 282	$ 315,318	$ 386,917	$ (80,045)	(23,417)	599,055
Balances (in shares) at Dec. 31, 2016	28,174			2,565
Increase (Decrease) in Stockholders' Equity
Net loss			(7,407)			(7,407)
Other comprehensive income, net of tax					610	610
Issuance of common stock under share-based compensation plans (in shares)	19
Tax effect of share-based compensation plans		(247)				(247)
Share-based compensation expense		1,731				1,731
Dividends declared on common stock			(2,066)			(2,066)
Balances at Mar. 31, 2017	$ 282	$ 316,802	$ 377,444	$ (80,045)	$ (22,807)	$ 591,676
Balances (in shares) at Mar. 31, 2017	28,193			2,565