Fair Value of Financial Instruments - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) (Fair Value, Measurements, Recurring, USD $)	Mar. 31, 2015	Dec. 31, 2014
Money Markets
Asset included in:
Financial Assets	$ 1,816,071	$ 3,608,890
Level 1 | Money Markets
Asset included in:
Financial Assets	1,816,071	3,608,890
Preferred Stock Warrants
Liabilities:
Financial Liabilities	120,418	429,035
Preferred Stock Warrants | Level 3
Liabilities:
Financial Liabilities	120,418	429,035
Convertible Note Warrants
Liabilities:
Financial Liabilities	727,737
Convertible Note Warrants | Level 3
Liabilities:
Financial Liabilities	727,737
Warrant
Liabilities:
Financial Liabilities	231,140	301,508
Warrant | Level 3
Liabilities:
Financial Liabilities	$ 231,140	$ 301,508