Segment Reporting (Tables)

12 Months Ended

Jul. 31, 2017

Segment Reporting [Abstract]

Revenue from External Customers by Geographic Areas

The Company reports segment information based on the geographic location of EEI and its direct and indirect subsidiaries.  Revenue, net and long-lived assets by business segment are summarized in the following tables.

	Fiscal Years Ended July 31,
	2017		2016		2015
	(in thousands)
Revenue, net, by Business Segment:
EEI and its subsidiaries located in the United States	$	82,094	$	83,095	$	88,715
Subsidiaries located in South America (1)		22,408		22,722		38,220

(1) Significant South American revenues included revenues from subsidiaries located in Peru ($6.3 million, $9.7 million and $22.8 million for fiscal years 2017, 2016 and 2015, respectively), Brazil ($8.2 million, $5.0 million and $8.0 million for fiscal years 2017, 2016 and 2015, respectively) and Chile ($7.7 million, $7.5 million and $6.5 million for fiscal years 2017, 2016 and 2015, respectively).

Long-lived Assets by Geographic Areas

	Balance at July 31,
	2017		2016
	(in thousands)
Long-lived assets by geographic location:
EEI and its subsidiaries located in the United States	$	3,293	$	4,916
Subsidiaries located in South America		1,135		1,178