Note 10 - Commitments and Contingencies - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Operating cash flows from operating leases	$ 989	$ 650
Operating cash flows from finance lease obligations	0	0
Financing cash flows from finance lease obligations	35	0
Unrelated Party [Member]
Operating cash flows from operating leases	147	84
Operating cash flows from finance lease obligations	0	0
Financing cash flows from finance lease obligations	35	0
Vitamin Realty LLC [Member]
Operating cash flows from operating leases	842	566
Operating cash flows from finance lease obligations	0	0
Financing cash flows from finance lease obligations	$ 0	$ 0