Note 15 - Equity Incentive Plans - Stock Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Total stock-based compensation expense	$ 151	$ 820	$ 324	$ 1,750
Cost of Sales [Member]
Total stock-based compensation expense	0	1	1	1
Research and Development Expense [Member]
Total stock-based compensation expense	1	2	3	3
Selling and Marketing Expense [Member]
Total stock-based compensation expense	14	0	46	0
General and Administrative Expense [Member]
Total stock-based compensation expense	136	704	274	1,428
Net Loss From Discontinued Operations [Member]
Total stock-based compensation expense	$ 0	$ 113	$ 0	$ 318