Note 1 - Significant Accounting Policies (Details Textual) - USD ($)	12 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Property, Plant and Equipment, Net	$ 211,000	$ 95,000
Right of Use Assets, Total	448,000
Contract with Customer, Liability, Current	96,000	191,000	$ 149,000
Accounts Receivable, after Allowance for Credit Loss, Current	1,499,000	1,343,000	1,165,000
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)	1,082,000	800
Contract with Customer, Refund Liability	70,000	67,000	$ 83,000
Sales Return Reserve, Period Increase (Decrease)	3,000	(16,000)
Advertising Expense	165,000	122,000
Unrecognized Tax Benefits, Income Tax Penalties Expense	0	0
Warrants and Rights Outstanding	$ 0	$ 0
Amazon [Member] \| Accounts Receivable [Member] \| Customer Concentration Risk [Member]
Concentration Risk, Percentage	59.00%	25.00%
Variety Wholesalers [Member] \| Accounts Receivable [Member] \| Customer Concentration Risk [Member]
Concentration Risk, Percentage	19.00%
Walmart [Member] \| Accounts Receivable [Member] \| Customer Concentration Risk [Member]
Concentration Risk, Percentage		34.00%
Chedraui [Member] \| Accounts Receivable [Member] \| Customer Concentration Risk [Member]
Concentration Risk, Percentage		30.00%
Microwave Ovens [Member]
Product Warranty, Term (Year)	1 year
Audio Products [Member]
Product Warranty, Term (Year)	90 days
Computer Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Computer Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	7 years
Furniture and Fixtures [Member]
Property, Plant and Equipment, Useful Life (Year)	7 years
Tools, Dies and Molds [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years

Represents the length of the term associated with the product warrant.

No definition available.

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- Definition

Represents the total amount of right of use assets included under both operating and finance leases.

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No definition available.

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The amount of increase (decrease) in sales return reserve during the period.

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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Amount of increase (decrease) in allowance for credit loss on accounts receivable.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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- Definition

Amount of liability for consideration received or receivable from customer which is not included in transaction price, when consideration is expected to be refunded to customer.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount of expense for penalties related to a tax position claimed or expected to be claimed in the tax return.

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- Definition

Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

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