3. Summary of Significant Accounting Policies (Details Narrative) - USD ($)  | 
Sep. 30, 2016  | 
Mar. 31, 2016  | 
|---|---|---|
| Accounting Policies [Abstract] | ||
| Allowance for doubtful accounts | $ 2,000 | $ 15,000 | 
| Allowance for potential discounts, returns, distributor fees and rebates | 788,000 | 653,000 | 
| Inventory reserves | $ 163,000 | $ 164,000 | 
| X | ||||||||||
- Definition Allowance for potential discounts, returns, distributor fees and rebates No definition available. 
  | 
| X | ||||||||||
- References No definition available. 
  | 
| X | ||||||||||
- Definition For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
| X | ||||||||||
- Definition Amount of valuation reserve for inventory. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  |