Basic and Diluted Income (Loss) Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Numerator:
Net loss	$ (1,155)	$ 530
Denominator:
Weighted-average shares outstanding for basic earnings per share (in shares)	18,340,554	18,395,585
Effect of dilutive securities:
Employee stock options (in shares)	0	73,233
Adjusted weighted-average shares outstanding and assumed conversions for diluted earnings per share (in shares)	18,340,554	18,468,818
Shares related to dilutive securities excluded because inclusion would be anti-dilutive (in shares)	2,898,615	2,696,374