Note 6 - Leases and Other Commitments and Contingencies - Leases and Commitments (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jul. 01, 2018	Jun. 30, 2018
Right-of-use assets	$ 3,399
Operating lease obligations	3,407
Remaining cash commitment	3,866
Machinery and Equipment Leases [Member]
Right-of-use assets	29
Operating lease obligations	29
Remaining cash commitment	30
Office Equipment Leases [Member]
Right-of-use assets	25
Operating lease obligations	25
Remaining cash commitment	26
Vitamin Realty LLC [Member]
Right-of-use assets	3,345	$ 3,668
Operating lease obligations	3,353	$ 3,677
Remaining cash commitment	$ 3,810