Note 12 - Segment Information - Summary of Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenue from Contract with Customer, Excluding Assessed Tax	$ 50,032	$ 31,109
Income (loss) from operations	12,837	(279)
Corporate, Non-Segment [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	74	46
Income (loss) from operations	(3,135)	(3,219)
Oil and Gas Markets [Member] | Operating Segments [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	39,909	20,148
Income (loss) from operations	14,563	2,406
Adjacent Markets [Member] | Operating Segments [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	9,815	10,822
Income (loss) from operations	2,034	1,747
Emerging Markets [Member] | Operating Segments [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	234	93
Income (loss) from operations	$ (625)	$ (1,213)