Note 6 - Leases and Other Commitments and Contingencies - Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Operating lease costs	$ 167	$ 165
Amortization of right-of use assets	0	12
Interest on operating lease liabilities	0	1
Total finance lease cost	0	13
Unrelated Party [Member]
Operating lease costs	26	24
Amortization of right-of use assets	0	12
Interest on operating lease liabilities	0	1
Total finance lease cost	0	13
Vitamin Realty LLC [Member]
Operating lease costs	141	141
Amortization of right-of use assets	0	0
Interest on operating lease liabilities	0	0
Total finance lease cost	$ 0	$ 0