XML 71 R53.htm IDEA: XBRL DOCUMENT v3.21.1
Earnings (Loss) Per Share (Details Narrative) - shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Number of anti-dilutive shares 0 0 117,659
Warrants [Member]      
Number of anti-dilutive shares 133,334 51,667 158,333
Stock Options [Member]      
Number of anti-dilutive shares 296,900