Note 4 - Revenue Recognition - Contract Asset and Contract Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2022	Sep. 30, 2022
Balance as of September 30, 2022	$ 6,778
New performance obligations	2,054
Recognition of revenue as a result of satisfying performance obligations	(4,021)
Effect of exchange rate on deferred revenue	28
Balance as of December 31, 2022	4,839
Less: non-current portion	(243)	$ (227)
Current portion as of December 31, 2022	4,596
Customer Deposits [Member]
Balance as of September 30, 2022	4,724
New performance obligations	1,562
Recognition of revenue as a result of satisfying performance obligations	(3,277)
Effect of exchange rate on deferred revenue	2
Balance as of December 31, 2022	3,011
Less: non-current portion	0
Current portion as of December 31, 2022	3,011
Deferred Revenue [Member]
Balance as of September 30, 2022	2,054
New performance obligations	492
Recognition of revenue as a result of satisfying performance obligations	(744)
Effect of exchange rate on deferred revenue	26
Balance as of December 31, 2022	1,828
Less: non-current portion	(243)
Current portion as of December 31, 2022	$ 1,585