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Concentrations (Details Narrative) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Cash and restricted cash $ 26,238,531 $ 25,752,637
Revenue Benchmark [Member] | Customer One [Member]    
Concentration risk percentage 97.00% 99.00%
Revenue Benchmark [Member] | Customer Two [Member]    
Concentration risk percentage 3.00% 1.00%