Note 5 - Significant Risks and Uncertainties (Details Textual)	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024	Jun. 30, 2024
Revenue Benchmark [Member] | Customer Concentration Risk [Member]
Number of Major Customers	2	2
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Other Nutraceutical Business [Member]
Number of Major Customers	2	2	3	3
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Two Customers [Member]
Concentration Risk, Percentage	85.00%	90.00%	83.00%	90.00%
Number of Major Customers			2	2
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 1 [Member] | Contract Manufacturing [Member]
Concentration Risk, Percentage	58.00%	72.00%	62.00%	73.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 1 [Member] | Other Nutraceutical Business [Member]
Concentration Risk, Percentage	40.00%	40.00%	38.00%	43.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 2 [Member] | Contract Manufacturing [Member]
Concentration Risk, Percentage	31.00%	20.00%	26.00%	21.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 2 [Member] | Other Nutraceutical Business [Member]
Concentration Risk, Percentage	20.00%	23.00%	26.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 3 [Member] | Other Nutraceutical Business [Member]
Concentration Risk, Percentage			12.00%	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			74.00%		84.00%
Revenue, Segment Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 2 [Member] | Branded Nutraceutical [Member]
Concentration Risk, Percentage				10.00%
Number of Employees, Geographic Area [Member] | Unionized Employees Concentration Risk [Member]
Concentration Risk, Percentage			78.00%