Annual report [Section 13 and 15(d), not S-K Item 405]

Summary of Significant Accounting Policies (Details Narrative)

v3.26.1
Summary of Significant Accounting Policies (Details Narrative)
 12 Months Ended
Mar. 31, 2026
USD ($)
Integer
shares
Mar. 31, 2025
USD ($)
shares
Mar. 31, 2024
USD ($)
Product Information [Line Items]      
Deferred revenue $ 284,000 $ 658,000 $ 565,000
Allowance for doubtful accounts 19,000 8,000  
Accounts receivable, net     2,898,000
Inventory valuation reserves 614,000 298,000  
Transfers in assets or liabilities 0 0  
Impairment of long lived assets 0 0  
Advertising costs 91,000 190,000  
Revenues $ 19,529,000 $ 14,288,000  
Preferred stock, shares issued | shares 0 0  
Number of opertaing segments | Integer 1    
Number of reportable segments | Integer 1    
Other Comprehensive Income [Member]      
Product Information [Line Items]      
Foreign currency translation adjustment gain $ 1,133,000    
Foreign currency translation adjustment loss   $ 1,653,000  
Other Operating Income Expenses [Member]      
Product Information [Line Items]      
Foreign currency transaction loss 1,446,000    
Foreign currency transaction gain   243,000  
Probable Credit Losses [Member]      
Product Information [Line Items]      
Allowance for doubtful accounts 0 0 0
Potential Discounts Returns Distributor Fees And Rebates [Member]      
Product Information [Line Items]      
Allowance for doubtful accounts 19,000 8,000 $ 27,000
Shipping and Handling [Member]      
Product Information [Line Items]      
Revenues $ 180,000 $ 18,000