Segment and Geographic Information (Tables)

12 Months Ended

Sep. 30, 2021

Segment Reporting [Abstract]

Summary of Company's Segment Information

The following tables summarize the Company’s segment information:

	YEAR ENDED SEPTEMBER 30,
	2021			2020
Revenue:
Oil and Gas Markets	$	52,252		$	61,661
Adjacent Markets		32,419			25,440
Emerging Markets		10,193			734
Corporate		—			—
Total		94,864			87,835
Income (loss) from operations:
Oil and Gas Markets		(16,229	)		(2,139	)
Adjacent Markets		6,423			4,017
Emerging Markets		5,033			(6,064	)
Corporate		(12,098	)		(13,853	)
Total		(16,871	)		(18,039	)
Depreciation and amortization expenses:
Oil and Gas Markets		18,199			21,192
Adjacent Markets		440			453
Emerging Markets		1,209			1,194
Corporate		929			854
Total		20,777			23,693
Impairment, inventory obsolescence and stock-based compensation expenses:
Oil and Gas Markets		3,850			6,326
Adjacent Markets		223			232
Emerging Markets		100			203
Corporate		798			941
Total		4,971			7,702
Interest income:
Oil and Gas Markets		1,409			1,029
Adjacent Markets		1			3
Emerging Markets		—			—
Corporate		31			70
Total		1,441			1,102
Interest expense:
Oil and Gas Markets		—			—
Adjacent Markets		—			—
Emerging Markets		—			—
Corporate		—			38
Total		—			38

Details of Revenue

The Company generates revenue from product sales, product rentals and services from its subsidiaries located in the United States, Canada, Colombia, the Russian Federation and the United Kingdom.  Revenue generated by the Company’s subsidiaries is as follows (in thousands):

	YEAR ENDED SEPTEMBER 30,
	2021			2020
United States	$	91,190		$	82,166
Canada		2,417			3,709
Colombia		—			5
Russian Federation		2,924			2,668
United Kingdom		3,210			2,488
Eliminations		(4,877	)		(3,201	)
	$	94,864		$	87,835

Summary of Revenue by Geographic Area

A summary of revenue by geographic area is as follows (in thousands):

	YEAR ENDED SEPTEMBER 30,
	2021		2020
Africa	$	2,507	$	5,814
Asia		23,299		41,128
Canada		997		3,193
Europe		13,801		12,626
United States		49,541		23,780
Other		4,719		1,294
	$	94,864	$	87,835

Long-lived Assets

Long-lived assets were as follows (in thousands):

	AS OF SEPTEMBER 30,
	2021		2020
United States	$	98,985	$	114,119
Canada		3,653		6,654
Colombia		—		1
Russian Federation		689		717
United Kingdom		559		404
China		13		13
	$	103,899	$	121,908