Note 6 - Leases and Other Commitments and Contingencies - Leases and Commitments (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jun. 30, 2019
Operating lease right-of-use assets	$ 3,052	$ 3,284
Current portion operating lease obligations	478	470
Operating lease obligations	2,580	2,822
Remaining cash commitment	3,425	3,719
Machinery and Equipment Leases [Member]
Operating lease right-of-use assets	21	26
Current portion operating lease obligations	11	11
Operating lease obligations	10	15
Remaining cash commitment	22	27
Office Equipment Leases [Member]
Operating lease right-of-use assets	17	22
Current portion operating lease obligations	9	9
Operating lease obligations	7	14
Remaining cash commitment	18	24
Vitamin Realty LLC [Member]
Operating lease right-of-use assets	3,014	3,236
Current portion operating lease obligations	458	450
Operating lease obligations	2,563	2,793
Remaining cash commitment	$ 3,385	$ 3,668