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Note 3 - Stock-based Compensation (Detail) (USD $)	9 Months Ended
Note 3 - Stock-based Compensation (Detail) (USD $)	Oct. 31, 2012	Oct. 31, 2011
Share-based Compensation	$ 29,700	$ 38,880
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures (in Shares)	18,000
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	$ 39,600

Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

Value of stock related to Restricted Stock Awards issued during the period, net of the stock value of such awards forfeited.