Annual report pursuant to Section 13 and 15(d)

Stockholder's Equity (Details)

v3.19.1
Stockholder's Equity (Details) - Warrant [Member] - USD ($)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Class of Warrant or Right, Shares Underlying Warrants [Roll Forward]    
Outstanding at beginning 1,340,869 907,237
Granted 1,288,599 433,632
Outstanding at ending 2,629,468 1,340,869
Class of Warrant or Right, Weighted Average Exercise Price [Roll Forward]    
Outstanding at beginning $ 5.07 $ 5.00
Granted 5.42 5.21
Outstanding at ending $ 5.24 $ 5.07
Class of Warrant or Right, Weighted average Remaining Contractual Life (years) [Roll Forward]    
Outstanding at beginning 4 years 11 days 2 years 11 months 1 day
Outstanding at ending 3 years 6 months 29 days 4 years 11 days
Class of Warrant or Right, Aggregate Intrinsic Value [Roll Forward]    
Outstanding at beginning
Outstanding at ending