Segment Information - Summary of Company's Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Revenue	$ 17,991	$ 28,460
Income (loss) from operations	(6,886)	(1,459)
Operating Segments | Oil and Gas Markets
Segment Reporting Information [Line Items]
Revenue	9,654	12,763
Income (loss) from operations	(4,170)	(5,986)
Operating Segments | Adjacent Markets
Segment Reporting Information [Line Items]
Revenue	8,171	6,900
Income (loss) from operations	1,208	1,260
Operating Segments | Emerging Markets
Segment Reporting Information [Line Items]
Revenue	137	8,797
Income (loss) from operations	(820)	6,479
Corporate
Segment Reporting Information [Line Items]
Revenue	29
Income (loss) from operations	$ (3,104)	$ (3,212)