Segment and Geographic Information (Tables)

12 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

Summary of Company's Segment Information

The following tables summarize the Company’s segment information:

	YEAR ENDED SEPTEMBER 30,
	2018			2017			2016
Revenue:
Oil and Gas Markets	$	44,951		$	47,109		$	33,792
Adjacent Markets		29,932			26,027			27,708
Emerging Markets		286			—			—
Corporate		579			585			560
Total		75,748			73,721			62,060
Income (loss) from operations:
Oil and Gas Markets		(14,070	)		(46,902	)		(47,690	)
Adjacent Markets		5,345			4,153			4,093
Emerging Markets		(718	)		—			—
Corporate		(11,300	)		(11,574	)		(11,913	)
Total		(20,743	)		(54,323	)		(55,510	)
Depreciation, amortization, impairment, inventory    obsolescence and stock-based compensation expenses:
Oil and Gas Markets		19,592			47,620			34,945
Adjacent Markets		654			785			746
Emerging Markets		207			—			—
Corporate		1,203			1,895			1,847
Total		21,656			50,300			37,538
Interest income:
Oil and Gas Markets		614			311			161
Adjacent Markets		—			—			3
Emerging Markets		—			—			—
Corporate		469			342			212
Total		1,083			653			376
Interest expense:
Oil and Gas Markets		2			—			—
Adjacent Markets		—			—			—
Emerging Markets		1			—			—
Corporate		333			39			26
Total		336			39			26

Details of Revenue

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

	YEAR ENDED SEPTEMBER 30,
	2018			2017			2016
United States	$	79,019		$	60,696		$	56,094
Canada		8,311			12,157			3,028
Colombia		300			558			556
Russian Federation		3,539			2,566			4,254
United Kingdom		3,095			2,892			2,120
Eliminations		(18,516	)		(5,148	)		(3,992	)
	$	75,748		$	73,721		$	62,060

Summary of Revenue by Geographic Area

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

	YEAR ENDED SEPTEMBER 30,
	2018		2017		2016
Asia (excluding Middle East)	$	2,143	$	7,924	$	18,745
Canada		15,945		11,318		3,048
Europe		4,743		3,883		4,219
Middle East		76		609		1,749
United States		50,522		47,966		32,317
Other		2,319		2,021		1,982
	$	75,748	$	73,721	$	62,060

Long-lived Assets, Excluding Deferred Tax Assets

Long-lived assets, excluding deferred tax assets, were as follows (in thousands):

	AS OF SEPTEMBER 30,
	2018		2017
United States	$	106,079	$	108,021
Canada		13,515		7,325
Colombia		1,002		1,747
Russian Federation		1,143		1,461
United Kingdom		428		502
China		13		14
	$	122,180	$	119,070