Note 1 - Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2024

Notes Tables

Disaggregation of Revenue [Table Text Block]

Disaggregation of revenue (in 000's)	2024		2023
Net revenues by type:
Net product sales	$	8,677	$	6,075
Licensing revenue		218		372
Royalty income		175		730
Net revenues		9,070		7,177
Net revenues by customers: (over 10%)
Walmart	$	4,769	$	3,042
Amazon.com		1,815		1,644
Fred Meyer		889		833
		7,473		5,519

Allowance for Sales and Marketing Expenses [Table Text Block]

Balance at March 31, 2022	$	76
additions		319
usages		(248	)
adjustments		(45	)
Balance at March 31, 2023	$	102
additions		435
usages		(364	)
adjustments		(20	)
Balance at March 31, 2024	$	153

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

	2024			2023
	(In thousands)
Interest expense	$	(5	)	$	(10	)
Interest income		1,160			712
Interest income, net	$	1,155		$	702