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Concentrations (Details) - USD ($)
3 Months Ended 6 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Purchase Of Inventory And Other Company $ 244,000 $ 119,000 $ 823,256 $ 367,000
Maximum Amount Outstanding     $ 210,773 $ 89,081
One Customer [Member] | Sales Revenue, Net [Member] | Customer Concentration Risk [Member]        
Concentration Risk, Percentage 18.40% 48.10% 12.60% 33.00%
Two Customer [Member] | Sales Revenue, Net [Member] | Customer Concentration Risk [Member]        
Concentration Risk, Percentage 10.10%   12.30%