Note 5 - Significant Risks and Uncertainties (Details Textual)	3 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Jun. 30, 2020
Revenue Benchmark [Member] | Customer Concentration Risk [Member]
Number of Major Customers	2	2
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Contract Manufacturing [Member]
Number of Major Customers		2	2
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Two Customers [Member]
Concentration Risk, Percentage	92.00%	91.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 1 [Member] | Contract Manufacturing [Member]
Concentration Risk, Percentage	69.00%	66.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer 2 [Member] | Contract Manufacturing [Member]
Concentration Risk, Percentage	25.00%	29.00%
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	89.00%		92.00%
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	69.00%