Note 6 - Leases and Other Commitments and Contingencies - Leases and Commitments (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020
Operating lease right-of-use assets	$ 2,704	$ 2,824
Current portion of operating lease liabilities	494	488
Operating lease liabilities	2,216	2,342
Remaining cash commitment	2,994	3,141
Machinery and Equipment Leases [Member]
Operating lease right-of-use assets	13	28
Current portion of operating lease liabilities	11	20
Operating lease liabilities	2	8
Remaining cash commitment	13	29
Office Equipment Leases [Member]
Operating lease right-of-use assets	18	8
Current portion of operating lease liabilities	11	1
Operating lease liabilities	7	7
Remaining cash commitment	19	9
Vitamin Realty LLC [Member]
Operating lease right-of-use assets	2,673	2,788
Current portion of operating lease liabilities	472	467
Operating lease liabilities	2,207	2,327
Remaining cash commitment	$ 2,962	$ 3,103