Note 6 - Leases and Other Commitments and Contingencies - Leases and Commitments (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Jul. 01, 2018	Jun. 30, 2018
Right-of-use assets	$ 3,626
Operating lease obligations	3,634
Remaining cash commitment	4,161
Machinery and Equipment Leases [Member]
Right-of-use assets	34
Operating lease obligations	34
Remaining cash commitment	36
Office Equipment Leases [Member]
Right-of-use assets	31
Operating lease obligations	31
Remaining cash commitment	33
Vitamin Realty LLC [Member]
Right-of-use assets	3,561	$ 3,668
Operating lease obligations	3,569	$ 3,677
Remaining cash commitment	$ 4,092