Note 4 - Property and Equipment, Net - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024
Property and Equipment	$ 2,167	$ 1,914
Accumulated depreciation	(1,643)	(1,540)
Property and equipment, net	524	374
Equipment [Member]
Property and Equipment	447	324
Leasehold Improvements [Member]
Property and Equipment	154	154
Furniture and Fixtures [Member]
Property and Equipment	339	344
IT Infrastructure [Member]
Property and Equipment	87	87
Software Development [Member]
Property and Equipment	$ 1,140	$ 1,005