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Balance Sheet (Tables)

6 Months Ended

Jul. 31, 2013

Balance Sheet [Abstract]

Accounts receivable and contracts receivable

		July 31, 2013				January 31, 2013
		(in thousands)
Accounts receivable:
Accounts receivable		$	26,932			$	26,505
Allowance for doubtful accounts			(3,281	)			(3,374	)
Total accounts receivable, net		$	23,651			$	23,131
Contracts and notes receivable:
Contracts receivable		$	858			$	904
Notes receivable			217				1,471
Less current portion			(1,075	)			(2,096	)
Long-term portion		$	—			$	279

Inventories

		July 31, 2013				January 31, 2013
		(in thousands)
Inventories:
Raw materials		$	3,074			$	3,103
Finished goods			3,676				3,531
Work in progress			904				627
			7,654				7,261
Less allowance for obsolescence			(1,118	)			(1,073	)
Total inventories, net		$	6,536			$	6,188

Seismic equipment lease pool and property and equipment

		July 31, 2013				January 31, 2013
		(in thousands)
Seismic equipment lease pool and property and equipment:
Seismic equipment lease pool		$	233,376			$	241,395
Land and buildings			366				366
Furniture and fixtures			8,861				8,899
Autos and trucks			807				748
			243,410				251,408
Accumulated depreciation and amortization			(137,536	)			(131,800	)
Total seismic equipment lease pool and property and equipment, net		$	105,874			$	119,608

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.13)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 13

-Subparagraph b

-Article 5

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- Definition

Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.3,4)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 3, 4

-Article 5

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- Definition

Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 2

-Paragraph 6

-Subparagraph a,b,c

-Article 5

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