Represents number of customers.

No definition available.

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- Definition

Represents the number of factory suppliers.

+ References

No definition available.

+ Details

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- Definition

Represents the number of sales representative organizations.

+ References

No definition available.

+ Details

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- Definition

Amount of allowance for credit loss on accounts receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(4))
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-URI https://asc.fasb.org/1943274/2147481962/310-10-50-4

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Balance Type:	credit
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- Definition

The amount of cash as of the balance sheet date that is not insured by the Federal Deposit Insurance Corporation.

+ References

No definition available.

+ Details

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Balance Type:	debit
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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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- Definition

The amount of deposits held by branches of foreign institutions.

+ References

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-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-3

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Note 12 - Risks and Uncertainties (Details Textual)	12 Months Ended
Note 12 - Risks and Uncertainties (Details Textual)	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)
Accounts Receivable, Allowance for Credit Loss, Current	$ 1,107,000	$ 25,000	$ 25,000
Cash, Uninsured Amount	900,000	$ 19,600,000
Foreign Financial Institutions, Actual Deposits	$ 14,900,000
Customer Concentration Risk [Member] \| Revenue Benchmark [Member]
Number of Customers	3	3
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Three Largest Customers [Member]
Concentration Risk, Percentage	79.00%	83.00%
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Amazon [Member]
Concentration Risk, Percentage	39.00%	20.00%
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Walmart [Member]
Concentration Risk, Percentage	31.00%	53.00%
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Big Lots [Member]
Concentration Risk, Percentage	9.00%
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Fred Meyer [Member]
Concentration Risk, Percentage		10.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Amazon [Member]
Concentration Risk, Percentage	59.00%	25.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Walmart [Member]
Concentration Risk, Percentage		34.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Variety Wholesalers [Member]
Concentration Risk, Percentage	19.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Chedraui [Member]
Concentration Risk, Percentage		30.00%
Product Concentration Risk [Member] \| Revenue Benchmark [Member] \| Microwave Ovens [Member]
Concentration Risk, Percentage	51.00%	33.00%
Product Concentration Risk [Member] \| Revenue Benchmark [Member] \| Audio Products [Member]
Concentration Risk, Percentage	47.00%	66.00%
Supplier Concentration Risk [Member] \| Products for Resale [Member]
Number of Factory Suppliers	4	4
Supplier Concentration Risk [Member] \| Products for Resale [Member] \| Four Largest Factory Suppliers [Member]
Concentration Risk, Percentage	95.00%	95.00%
Supplier Concentration Risk [Member] \| Products for Resale [Member] \| Supplier One [Member]
Concentration Risk, Percentage	37.00%
Sales Concentration Risk [Member] \| Revenue Benchmark [Member]
Number of Sales Representative Organizations	5	6
Sales Concentration Risk [Member] \| Revenue Benchmark [Member] \| Sales Representative Organizations [Member]
Concentration Risk, Percentage	48.00%
Sales Concentration Risk [Member] \| Revenue Benchmark [Member] \| Sales Representative Organizations One [Member]
Concentration Risk, Percentage	38.00%	30.00%
Sales Concentration Risk [Member] \| Revenue Benchmark [Member] \| Sales Representative Organizations Two [Member]
Concentration Risk, Percentage	10.00%