Note 10 - Commitments and Contingencies - Leases and Commitments (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Operating lease right-of-use assets	$ 2,824	$ 3,284
Current portion of operating lease liabilities	488	470
Operating lease liabilities	2,342	2,822
Remaining cash commitment	3,141	3,719
Machinery and Equipment Leases [Member]
Operating lease right-of-use assets	28	26
Current portion of operating lease liabilities	20	11
Operating lease liabilities	8	15
Remaining cash commitment	29	27
Office Equipment Leases [Member]
Operating lease right-of-use assets	8	22
Current portion of operating lease liabilities	1	9
Operating lease liabilities	7	14
Remaining cash commitment	9	24
Vitamin Realty LLC [Member]
Operating lease right-of-use assets	2,788	3,236
Current portion of operating lease liabilities	467	450
Operating lease liabilities	2,327	2,793
Remaining cash commitment	$ 3,103	$ 3,668