XML 64 R54.htm IDEA: XBRL DOCUMENT v3.21.1
Net Income (Loss) Per Share (Details) - shares
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Non-employees [Member]    
Net Income (Loss) Per Share (Textual)    
Warrants to purchase shares of common stock 36,436 52,337
Non-Director [Member]    
Net Income (Loss) Per Share (Textual)    
Warrants to purchase shares of common stock 884,343 9,187
Restricted Stock Units [Member]    
Net Income (Loss) Per Share (Textual)    
Warrants to purchase shares of common stock 128,090 53,190