Basic and Diluted Income (Loss) Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Numerator:
Net income (loss)	$ 158	$ (244)	$ 688	$ 769
Denominator:
Weighted-average shares outstanding for basic earnings per share (in shares)	18,391,988	19,213,931	18,398,790	19,213,886
Effect of dilutive securities:
Employee stock options and warrants (in shares)	97,702	0	96,903	242,179
Adjusted weighted-average shares outstanding and assumed conversions for diluted earnings per share (in shares)	18,489,690	19,213,931	18,495,693	19,456,065
Shares related to dilutive securities excluded because inclusion would be anti-dilutive (in shares)	2,816,873	1,698,596	2,756,624	1,544,504