Note 10 - Commitments and Contingencies - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating cash flows from operating leases	$ 657	$ 657
Operating cash flows from finance lease obligations	13	18
Financing cash flows from finance lease obligations	194	233
Unrelated Party [Member]
Operating cash flows from operating leases	92	92
Operating cash flows from finance lease obligations	13	18
Financing cash flows from finance lease obligations	194	233
Vitamin Realty LLC [Member]
Operating cash flows from operating leases	565	565
Operating cash flows from finance lease obligations
Financing cash flows from finance lease obligations