Merger with Macrocure and Related Transactions - Recapitalization and Amendments to Certificate of Incorporation (Details)	Jan. 20, 2017 shares	Dec. 31, 2018 shares	Dec. 31, 2017 shares
Merger with Macrocure
Common stock, shares authorized		100,000,000	100,000,000
Common Stock
Merger with Macrocure
Common stock, shares authorized	100,000,000
Preferred stock, shares authorized	10,000,000
Stock split ratio	0.05033
Common Stock | Conversion of preferred stock into common stock
Merger with Macrocure
Shares issued on conversion of preferred stock	3,174,523
Common Stock | Conversion of notes payable - related party and accrued interest into common stock
Merger with Macrocure
Shares issued on conversion of notes payable and related accrued interest	1,950,768