Note 6 - Leases and Other Commitments and Contingencies - Leases and Commitments (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Operating lease right-of-use assets	$ 1,991	$ 2,365
Current portion of operating lease liabilities	506	500
Operating lease liabilities	1,489	1,870
Remaining cash commitment	2,148	2,586
Office Equipment Leases [Member]
Operating lease right-of-use assets	30	38
Current portion of operating lease liabilities	7	10
Operating lease liabilities	23	28
Remaining cash commitment	34	44
Machinery and Equipment Leases [Member]
Operating lease right-of-use assets		5
Current portion of operating lease liabilities		5
Operating lease liabilities		0
Remaining cash commitment		5
Vitamin Realty LLC [Member]
Operating lease right-of-use assets	1,961	2,322
Current portion of operating lease liabilities	499	485
Operating lease liabilities	1,466	1,842
Remaining cash commitment	$ 2,114	$ 2,537