Note 5 - Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Jun. 30, 2024
Property and equipment, gross	$ 1,167	$ 2,818
Less: accumulated depreciation and amortization	(651)	(2,125)
Property and equipment, net	516	693
Manufacturing Equipment [Member]
Property and equipment, gross	721	1,838
Office Equipment, Furniture and Other [Member]
Property and equipment, gross	282	945
Leasehold Improvements [Member]
Property and equipment, gross	$ 164	$ 35