2015 Merck GHI Financing - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended
	Jul. 31, 2015	Mar. 31, 2017	Mar. 31, 2016
Common Stock and Note Purchase Agreement [Line Items]
Proceeds from issuance of common stock, net of issuance costs		$ 2,122,861	$ 0
Merck GHI Financing Agreement [Member]
Common Stock and Note Purchase Agreement [Line Items]
Stock issued during period, shares, new issues	1,136,364
Shares issued, price per share	$ 4.40
Proceeds from issuance of common stock, net of issuance costs	$ 5,000,000
Debt instrument, interest rate, stated percentage	8.00%
Debt instrument, face amount	$ 1,000,000
Fees related to common stock and debt transaction	50,000
Deferred debt issuance costs	8,000
Adjustments to additional paid in capital, stock issued, issuance costs	$ 42,000