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Line Of Credit	12 Months Ended
Line Of Credit	Jan. 31, 2012
Line Of Credit [Abstract]
Line Of Credit	Note 6—Line of Credit The Company has a $5,000,000 revolving bank line of credit with Wells Fargo Bank. Borrowings under this line of credit bear interest at either a fluctuating 75 basis points below the base rate, as defined in the agreement, or at a fixed rate 150 basis points above LIBOR. At January 31, 2012, there were no borrowings against this line and the entire line is currently available.

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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