Segment Information - Summary of Company's Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended	9 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2020	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Revenue	$ 22,703	$ 25,907	$ 17,705	$ 22,873	$ 43,612	$ 66,315	$ 66,871
Income (loss) from operations	(2,564)	$ (3,489)	$ (7,823)	(3,335)	$ (11,312)	(13,876)	(8,376)
Operating Segments | Oil and Gas Markets
Segment Reporting Information [Line Items]
Revenue	17,509			14,449		47,452	44,122
Income (loss) from operations	1,496			(280)		(1,088)	451
Operating Segments | Adjacent Markets
Segment Reporting Information [Line Items]
Revenue	5,106			8,234		18,306	22,128
Income (loss) from operations	605			1,717		2,670	4,350
Operating Segments | Emerging Markets
Segment Reporting Information [Line Items]
Revenue	88			11		557	145
Income (loss) from operations	(1,170)			(1,388)		(5,035)	(3,760)
Corporate
Segment Reporting Information [Line Items]
Revenue				179			476
Income (loss) from operations	$ (3,495)			$ (3,384)		$ (10,423)	$ (9,417)