Note 5 - Significant Risks and Uncertainties (Details Textual)	3 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Jun. 30, 2018
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]
Number of Major Customers	2
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Contract Manufacturing [Member]
Number of Major Customers	2
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Two Customers [Member]
Concentration Risk, Percentage	89.00%	91.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Major Customer 1 [Member] | Contract Manufacturing [Member]
Concentration Risk, Percentage	61.00%	63.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Major Customer 1 [Member] | Branded Nutraceutical [Member]
Concentration Risk, Percentage		10.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Major Customer 2 [Member] | Contract Manufacturing [Member]
Concentration Risk, Percentage	29.00%	32.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Number of Major Customers	2
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Two Customers [Member]
Concentration Risk, Percentage	89.00%		87.00%
Number of Employees, Geographic Area [Member] | Unionized Employees Concentration Risk [Member]
Concentration Risk, Percentage	67.00%