CONSOLIDATED STATEMENTS OF COMMON SHAREHOLDERS' EQUITY Statement - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Balance (in shares) at Dec. 31, 2012		18,874,000
Balance at Dec. 31, 2012	$ 108,195	$ 94	$ 136,030	$ (135)	$ (27,794)
Stockholders' Equity [Roll Forward]
Issuance of shares under stock plans (in shares)		75,000
Issuance of shares under stock plans	244	$ 1	243
Stock-based compensation (in shares)		23,000
Stock-based compensation, net of shares withheld for tax payments	549		549
Tax benefit related to stock options	150		150
Unrealized gain (loss) on derivative hedge transactions, net of tax	135			135
Net income	1,959				1,959
Balance (in shares) at Dec. 31, 2013		18,972,000
Balance at Dec. 31, 2013	111,232	$ 95	136,972	0	(25,835)
Stockholders' Equity [Roll Forward]
Issuance of shares under stock plans (in shares)		105,000
Issuance of shares under stock plans	488	$ 1	487
Stock-based compensation (in shares)		38,000
Stock-based compensation, net of shares withheld for tax payments	784		784
Tax benefit related to stock options	298		298
Unrealized gain (loss) on derivative hedge transactions, net of tax	(312)			(312)
Tax payments related to performance shares issued	(150)		(150)
Net income	$ 3,077				3,077
Balance (in shares) at Dec. 31, 2014	19,115,396	19,115,000
Balance at Dec. 31, 2014	$ 115,417	$ 96	138,391	(312)	(22,758)
Stockholders' Equity [Roll Forward]
Issuance of shares under stock plans (in shares)		18,000
Issuance of shares under stock plans	93	$ 0	93
Stock-based compensation (in shares)		46,000
Stock-based compensation, net of shares withheld for tax payments	1,157		1,157
Tax benefit related to stock options	44		44
Unrealized gain (loss) on derivative hedge transactions, net of tax	(40)			(40)
Tax payments related to performance shares issued	(151)		(151)
Net income	$ 2,218
Balance (in shares) at Dec. 31, 2015	19,179,006	19,179,000
Balance at Dec. 31, 2015	$ 118,738	$ 96	$ 139,534	$ (352)	$ (20,540)