Seismic Equipment Lease Pool and Property and Equipment (Tables)

12 Months Ended

Jan. 31, 2017

Property, Plant and Equipment [Abstract]

Schedule of Seismic Equipment Lease Pool and Property and Equipment

Seismic equipment lease pool and property and equipment consisted of the following (in thousands):

	As of January 31,
	2017			2016
Recording channels	$	126,081		$	127,202
Other peripheral equipment		92,920			103,721
Cost of seismic equipment lease pool		219,001			230,923
Land and buildings		3,379			3,375
Furniture and fixtures		9,462			9,405
Autos and trucks		675			694
Cost of property and equipment		13,516			13,474
Cost of seismic equipment lease pool and property and equipment		232,517			244,397
Less accumulated depreciation		(188,679	)		(170,881	)
Net book value of seismic equipment lease pool and property and equipment	$	43,838		$	73,516

Location of Seismic Equipment Lease Pool and Property and Equipment

Location of seismic equipment lease pool and property and equipment (in thousands):

	As of January 31,
	2017		2016
United States	$	16,510	$	26,913
Europe		7,730		18,499
Canada		8,525		13,985
Latin America		2,317		3,074
Singapore		5,321		6,408
Australia		1,462		2,611
Russia		1,973		2,026
Net book value of seismic equipment lease pool and property and equipment	$	43,838	$	73,516