Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Summary of Shareholders Equity Warrants Outstanding (Details) (Parenthetical)

v3.19.1
Stockholders' Equity - Summary of Shareholders Equity Warrants Outstanding (Details) (Parenthetical) - $ / shares
Dec. 31, 2018
Dec. 31, 2017
Equity [Abstract]    
Weighted average of exercise price $ 0.61 $ 0.70