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Recent Accounting Pronouncements	3 Months Ended
	Apr. 30, 2011
Recent Accounting Pronouncements
Recent Accounting Pronouncements	(10) Recent Accounting Pronouncements Fair Value Measurements In January 2010, the FASB issued Accounting Standards Update (ASU) 2010-06, "Improving Disclosures About Fair Value Measurement," which requires reporting entities to make new disclosures about recurring or nonrecurring fair value measurements including significant transfers into and out of Level 1 and Level 2 fair value measurements and information on purchases, sales, issuances and settlements on a gross basis in the reconciliation of Level 3 fair value measurements. ASU 2010-06 is effective for annual periods beginning after December 15, 2009, except for Level 3 reconciliation disclosures which were effective for annual periods beginning after December 15, 2010. The adoption of ASU 2010-06 did not have a material impact on our consolidated financial position or results of operations. Revenue Recognition In October 2009, the FASB issued ASU 2009-13, "Revenue Recognition (Topic 605)—Multiple-Deliverable Revenue Arrangements—a consensus of the FASB Emerging Issues Task Force" and ASU 2009-14, "Software (Topic 985)—Certain Arrangements That Include Software Elements—a consensus of the FASB Emerging Issues Task Force." ASU 2009-13 provides amendments to the criteria in Subtopic 605-25 for separating consideration in multiple-deliverable arrangements. The amendments in this update established a selling price hierarchy for determining the selling price of a deliverable. ASU 2009-13 also eliminates the residual method of allocating arrangement consideration and significantly expands the disclosures required for multiple-element revenue arrangements. ASU 2009-14 removes (1) tangible products containing software components and (2) non-software components that function together to deliver the tangible products essential functionality from the scope of software revenue guidance (ASC 965-605). ASU 2009-14 also provides guidance on determining whether software deliverables in an arrangement that includes a tangible product are covered by the scope of the software revenue guidance. We adopted ASU 2009-13 and ASU 2009-14 prospectively for revenue arrangements entered into or materially modified on or after February 1, 2011. Adoption of the new guidance did not have a material impact on our consolidated financial position and results of operations. Except for the ASU's discussed above, all other ASUs issued by the FASB as of the filing date of this Quarterly Report on Form 10-Q are not expected to have a material effect on our consolidated financial statements.

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- Definition

Represents disclosure of any changes in an accounting principle, including a change from one generally accepted accounting principle to another generally accepted accounting principle when there are two or more generally accepted accounting principles that apply or when the accounting principle formerly used is no longer generally accepted. Also disclose any change in the method of applying an accounting principle, or any change in an accounting principle required by a new pronouncement in the unusual instance that a new pronouncement does not include specific transition provisions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 154
-Paragraph 2, 17, 18

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 28
-Paragraph 23, 24

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 01
-Paragraph b
-Subparagraph 6
-Article 10

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