Summary of Significant Accounting Policies (Details Narrative) - USD ($)  | 
Sep. 30, 2021  | 
Mar. 31, 2021  | 
|---|---|---|
| Accounting Policies [Abstract] | ||
| Allowance for doubtful accounts | $ 112,000 | $ 125,000 | 
| Allowance for potential discounts, returns, distributor fees and rebates | 1,502,000 | 1,488,000 | 
| Inventory Valuation Reserves | $ 224,000 | $ 223,000 | 
| X | ||||||||||
- Definition Allowance for potential discounts, returns, distributor fees and rebates No definition available. 
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| X | ||||||||||
- References No definition available. 
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| X | ||||||||||
- Definition Amount of allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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| X | ||||||||||
- Definition Amount of valuation reserve for inventory. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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