Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Stockholders' Equity (Parenthetical)

v3.20.2
Consolidated Statements of Stockholders' Equity (Parenthetical) - USD ($)
1 Months Ended 12 Months Ended
May 24, 2019
Dec. 06, 2018
Oct. 08, 2018
Feb. 29, 2020
Jul. 31, 2019
Statement of Stockholders' Equity [Abstract]          
Payments of issuance cost $ 1,025,655 $ 304,916 $ 573,189 $ 1,954,678 $ 80,575