Income Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Per Common Share [Abstract]
Net (loss) income		$ (502)	$ 2,161	$ (776)	$ 3,220
Net loss (income) allocated to participating securities, basic		11	(38)	19	(60)
Net (loss) income allocated to common shareholders, basic		$ (491)	$ 2,123	$ (757)	$ 3,160
Basic weighted-average common shares outstanding		27,713	27,502	27,619	27,439
Basic (loss) income per common share		$ (0.02)	$ 0.08	$ (0.03)	$ 0.12
Net loss (income) allocated to participating securities, diluted		$ 11	$ (37)	$ 19	$ (59)
Net (loss) income allocated to common shareholders, diluted		$ (491)	$ 2,124	$ (757)	$ 3,161
Effect of dilutive stock options and awards	[1]		815		943
Diluted weighted-average common shares outstanding		27,713	28,317	27,619	28,382
Diluted (loss) income per common share		$ (0.02)	$ 0.08	$ (0.03)	$ 0.11
Antidilutive securities excluded from computation of earnings per share		389	485	309	182

[1] The Company excluded stock options from the calculation of diluted weighted-average common shares outstanding if the per share value, including the sum of (i) the exercise price of the options and (ii) the amount of the compensation cost attributed to future services and not yet recognized, was greater than the average market price of the shares because the inclusion of these stock options would be antidilutive to income (loss) per common share. Accordingly, stock options to purchase a weighted-average 389,000 and 309,000 shares for the three and six months ended June 30, 2015, respectively, and 485,000 and 182,000 shares for the three and six months ended June 30, 2014, respectively, were excluded from the calculation of diluted weighted-average common shares outstanding.