Note 1 - Background and Basis of Presentation (Details Textual) - USD ($)	12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization	$ 129,000	$ 211,000
Right of Use Assets, Total	304,000
Contract with Customer, Liability, Current	0	96,000	$ 191,000
Accounts Receivable, after Allowance for Credit Loss	1,293,000	1,499,000	1,343,000
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)	(1,100,000)	1,082,000
Contract with Customer, Refund Liability	57,000	70,000	$ 67,000
Sales Return Reserve, Period Increase (Decrease)	(13,000)	3,000
Advertising Expense	234,000	165,000
Unrecognized Tax Benefits, Income Tax Penalties Expense	$ 0	$ 0
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Amazon [Member]
Concentration Risk, Percentage	64.00%	59.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Fred Meyer [Member]
Concentration Risk, Percentage	20.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Variety Wholesalers [Member]
Concentration Risk, Percentage		19.00%
Microwave Ovens [Member]
Product Warranty, Term (Year)	1 year
Audio Products [Member]
Product Warranty, Term (Year)	90 days
Computer Equipment [Member] | Maximum [Member]
Property, Plant, and Equipment, Useful Life (Year)	7 years
Computer Equipment [Member] | Minimum [Member]
Property, Plant, and Equipment, Useful Life (Year)	3 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