Earnings Per Common Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Numerator:
Net loss	$ (3,674)	$ (497)
Denominator:
Weighted-average common shares outstanding (shares)	30,159	28,770
Basic earnings (loss) per common share (usd per share)	$ (0.12)	$ (0.02)
Numerator:
Net loss	$ (3,674)	$ (497)
Denominator:
Weighted-average common shares outstanding (shares)	30,159	28,770
Incremental shares from stock-based compensation plans (shares)	0	0
Denominator for diluted earnings (loss) per common share (shares)	30,159	28,770
Diluted earnings (loss) per common share (usd per share)	$ (0.12)	$ (0.02)