Warrants (Details)			9 Months Ended
	Oct. 19, 2018 shares	Sep. 29, 2017 USD ($) item $ / shares shares	Sep. 30, 2017 USD ($)	Sep. 30, 2018 item shares
Class of Warrant or Right [Line Items]
Number of calendar days prior to warrant issue the average closing price of common stock used to determine warrant exercise price		30 days
Proceeds from Warrant Exercises | $			$ 4,556,420
Common Stock
Class of Warrant or Right [Line Items]
Warrant exercise price | $ / shares		$ 1.39
Warrant One
Class of Warrant or Right [Line Items]
Proceeds from Warrant Exercises | $		$ 4,600,000
Warrant Two
Class of Warrant or Right [Line Items]
Number of shares into which the remaining warrant could be converted				722,000
Expected term of warrants		10 years
Historic volatility used to value the warrants		91.10%
Interest rate assumption used to value the warrants		2.28%
Number of other warrants outstanding | item				0
Warrant Three
Class of Warrant or Right [Line Items]
Stock Issued During Period Shares Warrant Exercise	280,000
Number of shares into which the remaining warrant could be converted	442,000
License Agreement | ABX
Class of Warrant or Right [Line Items]
Number Of Warrants Issued Per Agreement | item		2
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		4,000,000
License Agreement | Maximum | ABX
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		4,000,000