Revenue Recognition (Tables)

6 Months Ended

Mar. 31, 2022

Revenue from Contract with Customer [Abstract]

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

For each of the Company’s operating segments, the following table presents revenue only from the sale of products and the performance of services under contracts with customers (in thousands). Therefore, the table excludes all revenue earned from rental contracts.

	Three Months Ended				Six Months Ended
	March 31, 2022		March 31, 2021		March 31, 2022		March 31, 2021
Oil and Gas Markets
Traditional exploration product revenue	$	1,217	$	790	$	1,797	$	1,787
Wireless exploration product revenue		10,500		12,630		14,258		22,659
Reservoir product revenue		394		465		821		494
Total revenue		12,111		13,885		16,876		24,940
Adjacent Markets
Industrial product revenue		5,993		4,977		11,006		9,384
Imaging product revenue		3,162		2,577		6,279		5,040
Total revenue		9,155		7,554		17,285		14,424
Emerging Markets
Revenue		299		165		436		8,962
Total	$	21,565	$	21,604	$	34,597	$	48,326

Summary of Revenue from the Sale of Products and Services Under Contracts with Customers Excludes All Revenue Earned from Rental Contracts by Geographic Areas

For each of the geographic areas where the Company operates, the following table presents revenue (in thousands) from the sale of products and services under contracts with customers. The table excludes all revenue earned from rental contracts:

	Three Months Ended				Six Months Ended
	March 31, 2022		March 31, 2021		March 31, 2022		March 31, 2021
Asia	$	1,679	$	1,093	$	6,357	$	12,466
Canada		659		481		1,057		888
Europe		11,432		1,704		12,743		2,879
United States		7,305		18,055		13,324		31,419
Other		490		271		1,116		674
Total	$	21,565	$	21,604	$	34,597	$	48,326