Stock-based Compensation (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Stock-based Compensation
Options vested during period	3,800	5,100
Unvested stock options outstanding	14,700
Stock options outstanding	254,667
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures	5,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 2.52
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	101.70%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	1.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	7 years
Share-based compensation expense	$ 128,490	$ 35,862
Total unrecognized share-based compensation cost	$ 877,513		$ 993,423
Period to recognize share-based compensation expense not yet recognized	1 year 10 months 24 days
Stock Options
Stock-based Compensation
Shares available for grant	0
Restricted Stock
Stock-based Compensation
Restricted shares outstanding	623,782		623,782
Restricted shares outstanding, vested	96,162		43,663
Restricted shares outstanding, nonvested	527,620		580,119