Note 1 - Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2025

Notes Tables

Disaggregation of Revenue [Table Text Block]

Disaggregation of revenue (in 000's)	2025		2024
Net revenues by type:
Net product sales	$	10,449	$	8,677
Licensing revenue		336		218
Royalty income		—		175
Total:		10,785		9,070
Net revenues by customers: (over 10%)
Amazon	$	4,156	$	1,815
Walmart		3,322		4,769
Total:		7,478		6,584

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

	As of March 31,
	2025			2024			2023
Trade receivables	$	2,606		$	1,368		$	1,190
Allowance for credit losses		(1,107	)		(25	)		(25	)
Accounts receivable, net		1,499			1,343			1,165

Accounts Receivable, Allowance for Credit Loss [Table Text Block]

	As of March 31,
	2025			2024
Opening balance	$	(25	)	$	(25	)
Reserve adjustment		(1,082	)		-
Allowance for credit losses		(1,107	)		(25	)

Allowance for Sales and Marketing Expenses [Table Text Block]

Balance at March 31, 2023	$	102
additions		435
usages		(364	)
adjustments		(20	)
Balance at March 31, 2024	$	153
additions		864
usages		(805	)
adjustments		(38	)
Balance at March 31, 2025	$	174

Schedule of Other Nonoperating Income (Expense) [Table Text Block]

	2025			2024
	(In thousands)
Interest expense	$	(9	)	$	(5	)
Interest income		896			1,160
Interest income, net	$	887		$	1,155