Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning Balance (in shares) at Dec. 31, 2012		10,594,765
Beginning Balance at Dec. 31, 2012	$ 215,217	$ 107	$ (1,924)	$ 64,842	$ 159,660	$ (7,468)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (Loss) Income	11,378				11,378
Other comprehensive income (loss), net of tax	3,606					3,606
Stock options exercised (in shares)		487,163
Stock options exercised	8,775	$ 5		8,770
Stock repurchased related to the exercise of stock options (in shares)		(265,174)
Stock repurchased related to the exercise of stock options	(6,807)	$ (2)		(6,805)
Stock-based compensation	2,438			2,438
Excess tax benefits from share-based compensation	(336)			(336)
Ending Balance (in shares) at Dec. 31, 2013		10,816,754
Ending Balance at Dec. 31, 2013	234,271	$ 110	(1,924)	68,909	171,038	(3,862)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (Loss) Income	19,867				19,867
Other comprehensive income (loss), net of tax	(2,789)					(2,789)
Stock options exercised (in shares)		117,149
Stock options exercised	2,276	$ 1		2,275
Stock repurchased related to the exercise of stock options (in shares)		(34,597)
Stock repurchased related to the exercise of stock options	(920)	$ (1)		(919)
Stock awards vested (in shares)		52,962
Stock awards vested	0	$ 1		(1)
Stock-based compensation	3,725			3,725
Excess tax benefits from share-based compensation	140			140
Retirement of treasury stock	0	$ (1)	1,924	(1,923)
Ending Balance (in shares) at Dec. 31, 2014		10,952,268
Ending Balance at Dec. 31, 2014	256,570	$ 110	0	72,206	190,905	(6,651)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (Loss) Income	(73,282)				(73,282)
Other comprehensive income (loss), net of tax	$ 1,048					1,048
Stock options exercised (in shares)	167,523	167,523
Stock options exercised	$ 3,084	$ 1		3,083
Stock repurchased related to the exercise of stock options (in shares)		(137,194)
Stock repurchased related to the exercise of stock options	$ (4,210)	$ (1)		(4,209)
Stock awards vested (in shares)	144,877	101,721
Stock awards vested	$ 0	$ 1		(1)
Stock-based compensation	3,495			3,495
Excess tax benefits from share-based compensation	626			626
Ending Balance (in shares) at Dec. 31, 2015		11,084,318
Ending Balance at Dec. 31, 2015	$ 187,331	$ 111	$ 0	$ 75,200	$ 117,623	$ (5,603)