Note 12 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	$ (2,418)	$ (2,180)	$ (4,947)	$ (4,209)
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