Note 16 - Income Taxes - Computation of Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Current
Federal	$ 0	$ 63
Foreign	55	244
State	41	59
Current Income Tax Expense (Benefit)	96	366
Deferred:
Federal	0	0
Foreign	18	(3)
Deferred Income Tax Expense (Benefit)	18	(3)
Income Tax Expense (Benefit)	$ 114	$ 363