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Net Income (Loss) Per Share (Details) - Schedule of net income (loss) per share - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Schedule of net income (loss) per share [Abstract]        
Net income (loss) from operations – basic and diluted $ 916,729 $ (438,384) $ 1,371,262 $ (8,380,060)
Weighted average shares outstanding – basic 6,906,454 6,873,571 6,884,690 6,873,652
Weighted average shares outstanding – diluted 6,906,454 6,873,571 6,887,808 6,873,652
Per share data:        
Basic from operations $ 0.13 $ (0.06)    
Diluted from operations $ 0.13 $ (0.06) $ 0.20 $ (1.22)