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Note 14 - Description of Capital Stock (Detail) (USD $)	12 Months Ended
Note 14 - Description of Capital Stock (Detail) (USD $)	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2011	Jan. 31, 2010	Sep. 15, 2009	Jan. 05, 2009	Sep. 10, 2007	Aug. 18, 2005	Sep. 10, 2002	Jan. 02, 2001
Stock Repurchase Program, Number of Shares Authorized to be Repurchased				350,000	250,000	300,000	350,000	350,000	350,000	250,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	278,820
Stock Repurchased During Period, Shares	85,131	140,455
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share)		$ 2.04	$ 2.29

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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