Net Income (Loss) per Share of Common Stock (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Numerators for earnings per share:
Net income (loss) that is available to common shareholders	$ (3,384)	$ 1,989
Denominator for basic earnings per share:
Weighted average shares outstanding	21,523,077	21,114,963
Denominator for diluted earnings per share:
Effect of stock options and restricted stock units	0	478,785
Adjusted weighted average shares and assumed conversions	21,523,077	21,593,748
Basic earnings (loss) per share	$ (0.16)	$ 0.09
Diluted earnings (loss) per share	$ (0.16)	$ 0.09
Due to net loss position (excluded from denominator)
Shares excluded from diluted earnings (loss) per share due to:
Antidilutive securities excluded from diluted earnings per share	418,344	0
Inclusion would have been anti-dilutive (excluded from calculation)
Shares excluded from diluted earnings (loss) per share due to:
Antidilutive securities excluded from diluted earnings per share	382,109	783,843