Note 6 - Leases and Other Commitments and Contingencies - Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Operating lease costs	$ 166	$ 164	$ 505	$ 495
Amortization of right-of use assets	14	22	43	55
Interest on operating lease liabilities	3	5	11	12
Total finance lease cost	17	27	54	67
Unrelated Party [Member]
Operating lease costs	24	23	80	72
Amortization of right-of use assets	14	22	43	55
Interest on operating lease liabilities	3	5	11	12
Total finance lease cost	17	27	54	67
Vitamin Realty LLC [Member]
Operating lease costs	142	141	425	423
Amortization of right-of use assets
Interest on operating lease liabilities
Total finance lease cost