v2.4.0.8
Note 10 - Stock Compensation (Details) - Transactions Related to Stock Options Granted Under These Plans (USD $)
12 Months Ended
Jan. 31, 2014
Jan. 31, 2013
Jan. 31, 2012
Transactions Related to Stock Options Granted Under These Plans [Abstract]      
Number of Shares 638,500 764,500 380,000
Weighted-Average Exercise Price $ 1.22 $ 1.48 $ 3.93
Number of Shares   465,000  
Weighted-Average Exercise Price   $ 0.40  
Number of Shares (126,000) (80,500)  
Weighted-Average Exercise Price $ 2.77 $ 7.90  
Stock Options Exercisable at January 31, 2014 591,100    
Stock Options Exercisable at January 31, 2014 $ 1.23