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Note 5 - Income Taxes - Schedule of Deferred Tax Assets (Details) - USD ($)
Mar. 31, 2024
Mar. 31, 2023
Accounts receivable reserves $ 71,000 $ 34,000
Inventory 190,000 260,000
Accruals 116,000 9,000
Property and equipment and intangible assets 0 14,000
Net operating loss and credit carry forwards 4,152,000 4,437,000
Total deferred tax assets: 4,529,000 4,754,000
Valuation allowance (4,510,000) (4,754,000)
Net deferred tax assets: 19,000 0
Property and equipment (19,000) 0
Total deferred tax liabilities: $ (19,000) $ 0