Note 9 - Significant Risks and Uncertainties (Details Textual) $ in Thousands	12 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2023
Cash, FDIC Insured Amount	$ 250
Cash, Uninsured Amount	$ 2,137
Revenue Benchmark [Member] | Customer Concentration Risk [Member]
Number of Major Customers	2
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Two Customers [Member]
Concentration Risk, Percentage	90.00%	89.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 1 [Member] | Contract Manufacturing [Member]
Concentration Risk, Percentage	71.00%	70.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 1 [Member] | Other Nutraceutical Business [Member]
Concentration Risk, Percentage	43.00%	56.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 2 [Member] | Contract Manufacturing [Member]
Concentration Risk, Percentage	23.00%	24.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 2 [Member] | Other Nutraceutical Business [Member]
Concentration Risk, Percentage	14.00%	16.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Two Customers [Member]
Concentration Risk, Percentage	84.00%	84.00%
Revenue, Segment Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 1 [Member] | Branded Nutraceutical [Member]
Concentration Risk, Percentage	10.00%
Number of Employees, Geographic Area [Member] | Unionized Employees Concentration Risk [Member]
Concentration Risk, Percentage	76.00%