Note 12 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ (2,375)	$ (2,100)	$ (7,322)	$ (6,309)
Effective Income Tax Rate Reconciliation, Percent, Total	0.00%	0.00%	0.00%	0.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%	21.00%
Unrecognized Tax Benefits, Ending Balance	$ 400		$ 400