XML 52 R39.htm IDEA: XBRL DOCUMENT v3.21.1
Liquidity (Details Textual) - USD ($)
1 Months Ended 2 Months Ended 5 Months Ended 12 Months Ended
May 31, 2020
Nov. 30, 2019
May 31, 2020
Aug. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Liquidity [Abstract]              
Cash and cash equivalents         $ 13,010,356 $ 1,625,671 $ 1,368,395
Net proceeds of offering $ 15,596,141   $ 1,522,339        
Net proceeds of approximately   $ 326,000   $ 1,136,015 $ 2,117,948