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Line of Credit	12 Months Ended
	Jan. 31, 2013
Purchaser Line Of Credit Facility Receivable Disclosure [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, 2013, there were no borrowings against this line and the entire line is currently available.

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Purchaser line of credit facility receivable disclosure.

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