Note 6 - Leases and Other Commitments and Contingencies - Leases and Commitments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Jun. 30, 2021
Operating lease right-of-use assets	$ 2,115	$ 2,365
Current portion of operating lease liabilities	501	500
Operating lease liabilities	1,617	1,870
Remaining cash commitment	2,292	2,586
Machinery and Equipment Leases [Member]
Operating lease right-of-use assets	0	5
Current portion of operating lease liabilities	0	5
Operating lease liabilities	0	0
Remaining cash commitment	0	5
Office Equipment Leases [Member]
Operating lease right-of-use assets	32	38
Current portion of operating lease liabilities	7	10
Operating lease liabilities	25	28
Remaining cash commitment	37	44
Vitamin Realty LLC [Member]
Operating lease right-of-use assets	2,083	2,322
Current portion of operating lease liabilities	494	485
Operating lease liabilities	1,592	1,842
Remaining cash commitment	$ 2,255	$ 2,537