Financing Arrangements	9 Months Ended
Financing Arrangements	Oct. 31, 2012
Financing Arrangements [Abstract]
Financing Arrangements	FINANCING ARRANGEMENTS Raven has an uncollateralized credit agreement providing a line of credit of $10,500 with a maturity date of November 30, 2013, bearing interest at 1.5% above the daily one-month London Interbank Offered Rate. Letters of credit totaling $992 have been issued under the line of credit, primarily to support self-insured workers' compensation bonding requirements. No borrowings were outstanding as of October 31, 2012, January 31, 2012 or October 31, 2011, and $9,508 was available at October 31, 2012.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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