Balance Sheet

6 Months Ended

Jul. 31, 2011

Balance Sheet [Abstract]

Balance Sheet

5. Balance Sheet

	July 31,			January 31,
	2011			2011
	(in thousands)
Accounts receivable:
Accounts receivable	$	23,878		$	20,498
Allowance for doubtful accounts		(2,670	)		(2,666	)
Total accounts receivable, net	$	21,208		$	17,832
Contracts receivable:
Contracts receivable	$	3,380		$	4,937
Less current portion of contracts receivable		(3,380	)		(3,582	)
Long-term portion of contracts receivable, net	$	—		$	1,355

     Contracts receivable consisted of $3,380,000 due from two customers as of July 31, 2011 and $4,937,000 due from two customers as of January 31, 2011. Contracts receivable at July 31, 2011 and January 31, 2011 consisted of contracts bearing interest at an average of approximately 9% per year and with remaining repayment terms from nine to 11 months. These contracts are collateralized by the equipment sold and are considered collectable; thus, no allowances have been established for them.

	July 31,			January 31,
	2011			2011
	(in thousands)
Inventories:
Raw materials	$	2,620		$	2,440
Finished goods		2,996			1,888
Work in progress		809			1,215
		6,425			5,543
Less allowance for obsolescence		(828	)		(730	)
Total inventories, net	$	5,597		$	4,813

	July 31,			January 31,
	2011			2011
	(in thousands)
Seismic equipment lease pool and property and equipment:
Seismic equipment lease pool	$	204,724		$	166,883
Land and buildings		366			366
Furniture and fixtures		7,195			6,761
Autos and trucks		693			663
		212,978			174,673
Accumulated depreciation and amortization		(111,415	)		(95,578	)
Total seismic equipment lease pool and property and equipment, net	$	101,563		$	79,095