Note 9 - Significant Risks and Uncertainties (Details Textual) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022 USD ($)
Cash, FDIC Insured Amount		$ 250
Cash, Uninsured Amount		$ 1,949
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	89.00%	90.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 1 [Member] | Contract Manufacturing [Member]
Concentration Risk, Percentage	70.00%	67.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 1 [Member] | Other Nutraceutical Business [Member]
Concentration Risk, Percentage	56.00%	40.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 2 [Member] | Contract Manufacturing [Member]
Concentration Risk, Percentage	24.00%	26.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 2 [Member] | Other Nutraceutical Business [Member]
Concentration Risk, Percentage	16.00%	1.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 3 [Member] | Other Nutraceutical Business [Member]
Concentration Risk, Percentage	9.00%	19.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Two Customers [Member]
Concentration Risk, Percentage	84.00%	70.00%
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	74.00%