GEOGRAPHIC AND RELATED INFORMATION (Tables)

12 Months Ended

Dec. 31, 2016

Segment Reporting [Abstract]

Summary of revenues and identifiable assets by geographic areas

A summary of revenue and identifiable assets by geographic areas is as follows:

	Revenue from Services				Identifiable Assets
	Years Ended December 31,				December 31,
	2016		2015		2016		2015
North America:
United States	$	77,626	$	162,066	$	55,282	$	54,664
Canada	9,341		11,350		3,804		4,050
Total	86,967		173,416		59,086		58,714
South America:
Peru	252		15,218		495		1,878
Colombia	37,394		7,065		2,644		3,970
Bolivia	76,928		2,822		922		1,051
Other	1,968		2,147		2,167		2,390
Total	116,542		27,252		6,228		9,289
Southeast Asia:
Malaysia	1,734		27,469		875		1,300
Other	—		—		6		13
Total	1,734		27,469		881		1,313
West Africa:
Nigeria	321		—		—		—
Total	321		—		—		—
Consolidated	$	205,564	$	228,137	$	66,195	$	69,316
Total excluding United States	$	127,938	$	66,071	$	10,913	$	14,652

Summary of customers with revenues or accounts receivable in excess of 10% of consolidated total

A summary of customers with revenue or accounts receivable in excess of 10% of the consolidated total for 2016 and 2015 is as follows:

	Revenue from Services			Accounts Receivable, Net
	Years Ended December 31,			December 31,
	Amount		% of Consolidated	Amount		% of Consolidated
2016
Customer A	$	74,407	36%
Customer B	$	57,254	28%	$	81,609	76%
Customer C	$	21,161	10%
2015
Customer B	$	83,851	37%	$	50,407	74%
Customer F	$	40,050	18%
Customer G	$	27,469	12%
Customer H	$	23,400	10%