General form of registration statement for all companies including face-amount certificate companies

3. Summary of Significant Accounting Policies (Sept 2018 Note) (Details Narrative)

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3. Summary of Significant Accounting Policies (Sept 2018 Note) (Details Narrative) - USD ($)
Sep. 30, 2018
Mar. 31, 2018
Mar. 31, 2017
Accounting Policies [Abstract]      
Allowance for doubtful accounts $ 26,000 $ 17,000 $ 14,000
Allowance for potential discounts, returns, distributor fees and rebates 1,103,000 1,275,000  
Inventory reserves $ 128,000 $ 111,000 $ 61,000