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Stock Option Plans (Details) - USD ($)
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2017
Jan. 08, 2017
Stock Option Plans (Details) [Line Items]        
Common Stock, Par or Stated Value Per Share $ 0.10 $ 0.10   $ 0.1
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross 23,000 15,000    
Share-Based Payment Arrangement, Noncash Expense $ 19,733 $ 21,996    
2016 Stock Option Plan [Member]        
Stock Option Plans (Details) [Line Items]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period     5 years  
Share-Based Compensation Arrangement by Share-Based Payment Award, Terms of Award     exercise price which is not less than the fair market value of the common stock at the date of grant, except to a shareholder owning 10% or more of the outstanding common stock of the Company, as to which the exercise price must be not less than 110% of the fair market value of the common stock at the date of grant. Options are exercisable on a cumulative basis, 20% at or after each of the first, second, and third anniversary of the grant and 40% after the fourth year anniversary.  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value $ 1.02 $ 1.03    
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term 5 years      
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant 138,500 151,500    
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount $ 45,924 $ 60,013    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition 2 years 1 month 28 days      
Share-Based Payment Arrangement, Option [Member]        
Stock Option Plans (Details) [Line Items]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross 23,000      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value $ 2.99