Stock Purchase Warrants (Details Textual) (USD $)	6 Months Ended	1 Months Ended			3 Months Ended		6 Months Ended
	Jun. 30, 2013	Oct. 25, 2012 Warrant [Member]	Mar. 15, 2012 Warrant [Member]	Feb. 02, 2012 Warrant [Member]	Jun. 30, 2013 Warrant [Member] General and Administrative Expenses and Research and Development Expense [Member]	Jun. 30, 2012 Warrant [Member] General and Administrative Expenses and Research and Development Expense [Member]	Jun. 30, 2013 Warrant [Member] General and Administrative Expenses and Research and Development Expense [Member]	Jun. 30, 2012 Warrant [Member] General and Administrative Expenses and Research and Development Expense [Member]
Issuance of Warrants to Purchase of Common Stock		635,855
Warrants Exercise Price Per Share		$ 1.60
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Weighted Average Remaining Contractual Terms	3 years 3 months 11 days	5 years
Investment Warrants Expiration Date		Oct. 25, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Warrants, Exercisable Number			250,000	100,000
Share-based Compensation Arrangement by Share-based Payment Award, Warrants, Vested and Expected to Vest Outstanding, Number			50,000
Incremental Expense			$ 76,000
Share-based Compensation Arrangement by Share-based Payment Award, Warrants, Exercisable in Period			2 years	5 years
Warrants Exercisable Price Per Share			$ 2.20	$ 1.14
Allocated Share-based Compensation Expense					$ 22,000	$ 0	$ 22,000	$ 270,000