Note 9 - Significant Risks and Uncertainties (Details Textual) $ in Thousands	12 Months Ended
	Jun. 30, 2026 USD ($)	Jun. 30, 2025
Cash, FDIC Insured Amount	$ 250
Cash, Uninsured Amount	$ 4,381
Revenue Benchmark [Member] \| Customer Concentration Risk [Member]
Number of Major Customers	2	2
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Two Customers [Member]
Concentration Risk, Percentage	90.00%	84.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Major Customer 1 [Member] \| Contract Manufacturing [Member]
Concentration Risk, Percentage	68.00%	62.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Major Customer 1 [Member] \| Other Nutraceutical Business [Member]
Concentration Risk, Percentage	29.00%	32.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Major Customer 2 [Member] \| Contract Manufacturing [Member]
Concentration Risk, Percentage	25.00%	26.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Major Customer 2 [Member] \| Other Nutraceutical Business [Member]
Concentration Risk, Percentage		25.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Major Customer 3 [Member] \| Other Nutraceutical Business [Member]
Concentration Risk, Percentage		11.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Major Customer 4 [Member] \| Other Nutraceutical Business [Member]
Concentration Risk, Percentage		10.00%
Accounts Receivable [Member] \| Customer Concentration Risk [Member]
Number of Major Customers	2	2
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Two Customers [Member]
Concentration Risk, Percentage	81.00%	76.00%
Number of Employees, Geographic Area [Member] \| Unionized Employees Concentration Risk [Member]
Concentration Risk, Percentage	77.00%