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Stock Option Plans (Details) - Schedule of Share-based Compensation, Stock Options, Activity - USD ($)
12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Apr. 01, 2019
Schedule of Share-based Compensation, Stock Options, Activity [Abstract]      
Options Outstanding, Number of Options 98,500 118,500 42,500
Options Outstanding, Average Exercise Price $ 3.19 $ 3.98 $ 5.40
Options Outstanding, Average Remaining Contractual Term 3 years 109 days 2 years 292 days  
Options Outstanding, Aggregate Intrinsic Value $ 30,835 $ 13,295  
Vested Options:      
Vested Options, Number of Options 19,700 38,000  
Vested Options, Average Exercise Price $ 3.22 $ 5.65  
Vested Options, Average Remaining Contractual Term 2 years 292 days 109 days  
Vested Options, Aggregate Intrinsic Value $ 5,567 $ 2,734  
Options Granted, Number of Options 15,000 76,000  
Options Granted, Average Exercise Price $ 3.11 $ 3.19  
Options Exercised, Number of Options 0 0  
Options Exercised, Average Exercise Price $ 0 $ 0  
Options Canceled/Forfeited, Number of Options (35,000) 0  
Options Canceled/Forfeited, Average Exercise Price $ 5.85 $ 0