Note 15 - Segment and Geographic Information - Schedule of Revenue by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Total revenue	$ 172,809	$ 165,948	$ 486,260	$ 492,715
UNITED STATES
Total revenue	95,196	89,199	274,184	263,488
Africa [Member]
Total revenue	21,988	19,052	48,442	44,889
CHINA
Total revenue	14,528	13,522	43,072	38,909
UNITED KINGDOM
Total revenue	8,086	8,737	19,427	19,939
Europe [Member]
Total revenue	22,985	23,579	71,667	84,433
Asia Pacific [Member]
Total revenue	$ 10,026	$ 11,859	$ 29,468	$ 41,057