Balance Sheet (Tables)

9 Months Ended

Oct. 31, 2013

Text Block [Abstract]

Accounts Receivable and Contracts Receivable

	October 31, 2013			January 31, 2013
	(in thousands)
Accounts receivable:
Accounts receivable	$	29,028		$	26,505
Allowance for doubtful accounts		(4,016	)		(3,374	)
Total accounts receivable, net	$	25,012		$	23,131
Contracts and notes receivable:
Contracts receivable	$	858		$	904
Notes receivable		269			1,471
Less current portion		(1,127	)		(2,096	)
Long-term portion	$	—		$	279

Inventories

	October 31, 2013			January 31, 2013
	(in thousands)
Inventories:
Raw materials	$	4,354		$	3,103
Finished goods		4,248			3,531
Work in progress		1,056			627
		9,658			7,261
Less allowance for obsolescence		(1,168	)		(1,073	)
Total inventories, net	$	8,490		$	6,188

Seismic Equipment Lease Pool and Property and Equipment

	October 31, 2013				January 31, 2013
		(in thousands)
Seismic equipment lease pool and property and equipment:
Seismic equipment lease pool		$	238,164			$	241,395
Land and buildings			366				366
Furniture and fixtures			8,943				8,899
Autos and trucks			799				748
			248,272				251,408
Accumulated depreciation and amortization			(141,641	)			(131,800	)
Total seismic equipment lease pool and property and equipment, net		$	106,631			$	119,608