Segment Information - Summary of Company's Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Revenue	$ 24,700	$ 23,892	$ 42,691	$ 52,352
Income (loss) from operations	(1,649)	(8,176)	(8,535)	(9,635)
Operating Segments | Oil and Gas Markets
Segment Reporting Information [Line Items]
Revenue	15,146	16,132	24,800	28,895
Income (loss) from operations	1,656	(5,465)	(2,514)	(11,451)
Operating Segments | Adjacent Markets
Segment Reporting Information [Line Items]
Revenue	9,203	7,595	17,374	14,495
Income (loss) from operations	1,292	1,562	2,500	2,822
Operating Segments | Emerging Markets
Segment Reporting Information [Line Items]
Revenue	299	165	436	8,962
Income (loss) from operations	(1,384)	(1,189)	(2,204)	5,290
Corporate
Segment Reporting Information [Line Items]
Revenue	52		81
Income (loss) from operations	$ (3,213)	$ (3,084)	$ (6,317)	$ (6,296)