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New Accounting Standards	9 Months Ended
New Accounting Standards	Oct. 31, 2012
New Accounting Pronouncement [Abstract]
New Accounting Standards	NEW ACCOUNTING STANDARDS Accounting Standards Adopted During the nine months ended October 31, 2012 there were no accounting pronouncements adopted or effective that are of significance, or potential significance, to the Company. Pending Accounting Standards In July 2012 the Financial Accounting Standards Board (FASB) issued Accounting Standards Update No. 2012-02, "Testing Indefinite-Lived Intangible Assets for Impairment" (ASU No. 2012-02). ASU No. 2012-02 is intended to reduce the cost and complexity of testing indefinite-lived intangible assets other than goodwill for impairment. It allows Raven to perform a "qualitative" assessment to determine whether further impairment testing of indefinite-lived intangible assets is necessary, similar in approach to the goodwill impairment test. The revised guidance is effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012. The Company does not expect the adoption of this guidance to have a material impact on the Company's consolidated financial statements.