Note 5 - Revenue Recognition - Contract Asset and Contract Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Sep. 30, 2023
Balance as of September 30, 2022	$ 4,020
New performance obligations	2,402
Recognition of revenue as a result of satisfying performance obligations	(1,705)
Effect of exchange rate on deferred revenue	5
Balance as of March 31, 2023	4,722
Less: non-current portion	(509)	$ (551)
Current portion as of March 31, 2023	4,213
Customer Deposits [Member]
Balance as of September 30, 2022	766
New performance obligations	819
Recognition of revenue as a result of satisfying performance obligations	(363)
Effect of exchange rate on deferred revenue	0
Balance as of March 31, 2023	1,222
Less: non-current portion	0
Current portion as of March 31, 2023	1,222
Deferred Revenue [Member]
Balance as of September 30, 2022	3,254
New performance obligations	1,583
Recognition of revenue as a result of satisfying performance obligations	(1,342)
Effect of exchange rate on deferred revenue	5
Balance as of March 31, 2023	3,500
Less: non-current portion	(509)
Current portion as of March 31, 2023	$ 2,991