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Stock Option Plans (Details) - Schedule of Share-based Compensation, Stock Options, Activity - USD ($)
12 Months Ended
Apr. 01, 2020
Mar. 31, 2022
Mar. 31, 2021
Schedule of Share-based Compensation, Stock Options, Activity [Abstract]      
Options Outstanding, Number of Options 118,500 98,500 118,500
Options Outstanding, Average Exercise Price $ 3.98 $ 3.14 $ 3.19
Options Outstanding, Average Remaining Contractual Term 2 years 9 months 18 days 2 years 8 months 19 days 3 years 3 months 18 days
Options Outstanding, Aggregate Intrinsic Value $ 13,295 $ 3,680 $ 30,835
Vested Options:      
Vested Options, Number of Options   36,900 19,700
Vested Options, Average Exercise Price   $ 3.21 $ 3.22
Vested Options, Average Remaining Contractual Term   2 years 2 years 9 months 18 days
Vested Options, Aggregate Intrinsic Value     $ 5,567
Options Granted, Number of Options   23,000 15,000
Options Granted, Average Exercise Price   $ 2.94 $ 3.11
Options Exercised, Number of Options   0 0
Options Exercised, Average Exercise Price   $ 0 $ 0
Options Canceled/Forfeited, Number of Options   (10,000) (35,000)
Options Canceled/Forfeited, Average Exercise Price   $ 3.19 $ 5.85
Options Outstanding, Number of Options   111,500 98,500