Revenue Recognition - Summary of Revenue from the Sale of Products and Performance of Services Under Contracts with Customers Excludes All Revenue Earned from Rental Contracts by Operating Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Disaggregation Of Revenue [Line Items]
Total revenue	$ 19,548	$ 13,032
Operating Segments
Disaggregation Of Revenue [Line Items]
Total revenue	19,548	13,032
Operating Segments | Oil and Gas Markets
Disaggregation Of Revenue [Line Items]
Total revenue	8,669	4,765
Operating Segments | Oil and Gas Markets | Traditional Exploration Product Revenue
Disaggregation Of Revenue [Line Items]
Total revenue	2,755	580
Operating Segments | Oil and Gas Markets | Wireless Exploration Product Revenue
Disaggregation Of Revenue [Line Items]
Total revenue	5,759	3,758
Operating Segments | Oil and Gas Markets | Reservoir Product Revenue
Disaggregation Of Revenue [Line Items]
Total revenue	155	427
Operating Segments | Adjacent Markets
Disaggregation Of Revenue [Line Items]
Total revenue	10,786	8,130
Operating Segments | Adjacent Markets | Industrial Product Revenue
Disaggregation Of Revenue [Line Items]
Total revenue	7,930	5,014
Operating Segments | Adjacent Markets | Imaging Product Revenue
Disaggregation Of Revenue [Line Items]
Total revenue	2,856	3,116
Operating Segments | Emerging Markets
Disaggregation Of Revenue [Line Items]
Total revenue	$ 93	$ 137