Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Net income (loss)	$ 4,637	$ (1,474)	$ 4,540	$ (8,242)
Other comprehensive income (loss):
Change in unrealized gains on available-for-sale securities, net of tax	7	2	15	(7)
Foreign currency translation adjustments	(1,348)	(1,558)	(1,342)	(1,691)
Total other comprehensive loss	(1,341)	(1,556)	(1,327)	(1,698)
Total comprehensive income (loss)	$ 3,296	$ (3,030)	$ 3,213	$ (9,940)