Note 5 - Revenue Recognition - Contract Asset and Contract Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2024	Sep. 30, 2023
Balance as of September 30, 2022	$ 4,020
New performance obligations	9,188
Recognition of revenue as a result of satisfying performance obligations	(8,437)
Effect of exchange rate on deferred revenue	(2)
Balance as of March 31, 2023	4,769
Less: non-current portion	(343)	$ (551)
Current portion as of March 31, 2023	4,426
Customer Deposits [Member]
Balance as of September 30, 2022	766
New performance obligations	3,485
Recognition of revenue as a result of satisfying performance obligations	(3,393)
Effect of exchange rate on deferred revenue	0
Balance as of March 31, 2023	858
Less: non-current portion	0
Current portion as of March 31, 2023	858
Deferred Revenue [Member]
Balance as of September 30, 2022	3,254
New performance obligations	5,703
Recognition of revenue as a result of satisfying performance obligations	(5,044)
Effect of exchange rate on deferred revenue	(2)
Balance as of March 31, 2023	3,911
Less: non-current portion	(343)
Current portion as of March 31, 2023	$ 3,568