4.	Balance Sheet


	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

Contracts receivable consisted of $858,000 due from two customers as of October 31, 2013 and $904,000 due from two customers as of January 31, 2013. Notes receivable of $269,000 at October 31, 2013 and $1,471,000 at January 31, 2013 relate to promissory notes issued by a customer in settlement of a trade account receivable. As of October 31, 2013, the amounts due pursuant to these agreements bear interest at an average of approximately 8.7% per year and have remaining repayment terms of five to 11 months. These agreements are collateralized by seismic equipment and are considered collectable; thus, no allowances have been established for them.


	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


	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