Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Liquidity (Details Narrative)

v3.8.0.1

Liquidity (Details Narrative) - USD ($)			3 Months Ended
Liquidity (Details Narrative) - USD ($)	Jan. 26, 2018	Jan. 05, 2018	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Accumulated deficit			$ 77,393,486		$ 65,698,101
Proceeds from sale of stock			11,856,655	$ 41,349,957
Amount received upon achievement			$ 6,250,000
Number of warrants issued to purchase shares of common stock			2,288,500
Warrants exercise price per share			$ 6.33
Cash and cash equivalents			$ 70,955,652		$ 62,537,495
2018 CFF Award [Member]
Amount received for development award	$ 25,000,000
Sales Agreement [Member]
Proceeds from sale of stock				$ 13,268,208
Investment Agreement [Member] \| Phase 2b Clinical Trial [Member]
Amount received for development award			6,250,000
Investment Agreement [Member] \| Phase 2b Clinical Trial [Member] \| May 2018 [Member]
Amount received upon achievement			$ 6,250,000
Cantor Fitzgerald & Co. [Member] \| Sales Agreement [Member]
Number of common stock value sold		$ 50,000,000
Number of common stock share sold		1,500,000
Proceeds from sale of stock		$ 11,200,000
Cystic Fibrosis Foundation warrants [Member]
Number of warrants issued to purchase shares of common stock	1,000,000		1,000,000
Warrants exercise price per share	$ 13.20		$ 13.20
Number of warrants exercisable	500,000		500,000
Cystic Fibrosis Foundation warrants [Member] \| Investment Agreement [Member]
Number of warrants exercisable	500,000		500,000

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