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Balance Sheet (Tables)

3 Months Ended

Apr. 30, 2014

Text Block [Abstract]

Accounts Receivable

		April 30, 2014				January 31, 2014
		(in thousands)
Accounts receivable:
Accounts receivable		$	33,278			$	33,347
Allowance for doubtful accounts			(3,843	)			(3,833	)
Total accounts receivable, net		$	29,435			$	29,514

Schedule of Inventories

		April 30, 2014				January 31, 2014
		(in thousands)
Inventories:
Raw materials		$	4,335			$	4,599
Finished goods			4,214				4,159
Work in progress			828				612
			9,377				9,370
Less allowance for obsolescence			(1,075	)			(1,032	)
Total inventories, net		$	8,302			$	8,338

Schedule of Seismic Equipment Lease Pool and Property and Equipment

	April 30, 2014				January 31, 2014
		(in thousands)
Seismic equipment lease pool and property and equipment:
Seismic equipment lease pool		$	260,827			$	261,644
Land and buildings			366				366
Furniture and fixtures			9,120				8,904
Autos and trucks			789				770
			271,102				271,684
Accumulated depreciation and amortization			(146,806	)			(142,111	)
Total seismic equipment lease pool and property and equipment, net		$	124,296			$	129,573

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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



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-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

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