Summary of Significant Accounting Policies (Details 3) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Stock-Based Compensation
Total stock-based compensation expense	$ 108,000	$ 39,000	$ 324,000	$ 289,000
Proceeds from option exercises	$ 10,020	$ 0	$ 22,820	$ 0
Stock Options
Stock-Based Compensation
Awards granted			105,000
Expected life			3 years 10 months 24 days
Expected volatility			52.00%
Dividend yield			0.00%
Risk-free interest rate			1.20%
Total option exercises	23,833	0	37,165	0
Employee stock purchase plan
Stock-Based Compensation
Expected life			1 year
Expected volatility			51.00%
Dividend yield			0.00%
Risk-free interest rate			0.16%