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The cash outflow for cost incurred directly with the issuance of an equity security.

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The cash inflow from the additional capital contribution to the entity.

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Number of new stock issued during the period.

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Issuance of Common Stock (Details) (USD $)	3 Months Ended		0 Months Ended
Issuance of Common Stock (Details) (USD $)	Mar. 31, 2015	Mar. 31, 2014	Jan. 26, 2015
Common Stock
Net proceeds from issuance of common stock	$ 3,338,470	$ 5,323,717
Common Class A \| Warrants January 2015 Subscribers
Common Stock
Number of shares under warrants			2,205,216
Exercise price of warrants (in dollars per share)			$ 0.70
Placement agent fees equal to gross proceeds from offering (as a percent)			6.00%
Net proceeds from issuance of common stock			3,338,000
Placement agent fees			215,000
Legal and other fees			30,000
Common Class A \| SRA Warrants January 2015 Financing
Common Stock
Number of shares under warrants			330,783
Exercise price of warrants (in dollars per share)			$ 0.70
Common Class A \| 2015 Shelf Registration Statement
Common Stock
Number of shares sold			5,513,044
Share price (in dollars per share)			$ 0.65
Gross proceeds from issuance of common stock			3,583,479
Common Class A \| At the Market Sales Agreement
Common Stock
Number of shares sold		5,365,784
Net proceeds from issuance of common stock		5,323,717
Offering costs		$ 169,000
Common Class A \| At the Market Sales Agreement \| Minimum
Common Stock
Share price (in dollars per share)		$ 0.90
Common Class A \| At the Market Sales Agreement \| Maximum
Common Stock
Share price (in dollars per share)		$ 1.13