v2.4.0.8
Note 4 - Stock-Based Compensation (Details) - Stock Awards Outstanding (USD $)
6 Months Ended
Jul. 31, 2014
Note 4 - Stock-Based Compensation (Details) - Stock Awards Outstanding [Line Items]  
Number Outstanding (in Shares) 600,000
Weighted-Ave. Exercise/Grant Price $ 0.96
Number Exercisable (in Shares) 560,000
Weighted-Ave. Exercise Price, Exercisable $ 0.95
Range 1 [Member]
 
Note 4 - Stock-Based Compensation (Details) - Stock Awards Outstanding [Line Items]  
Range of Exercise/Grant Prices $ 0.40
Number Outstanding (in Shares) 465,000
Weighted-Ave. Remaining Contractual Life 8 years 73 days
Weighted-Ave. Exercise/Grant Price $ 0.40
Number Exercisable (in Shares) 465,000
Weighted-Ave. Exercise Price, Exercisable $ 0.40
Range 2 [Member]
 
Note 4 - Stock-Based Compensation (Details) - Stock Awards Outstanding [Line Items]  
Range of Exercise/Grant Prices $ 1.09
Number Outstanding (in Shares) 100,000
Weighted-Ave. Remaining Contractual Life 4 years 102 days
Weighted-Ave. Exercise/Grant Price $ 1.09
Number Exercisable (in Shares) 60,000
Weighted-Ave. Exercise Price, Exercisable $ 1.09
Range 3 [Member]
 
Note 4 - Stock-Based Compensation (Details) - Stock Awards Outstanding [Line Items]  
Range of Exercise/Grant Prices $ 4.90
Number Outstanding (in Shares) 15,000
Weighted-Ave. Remaining Contractual Life 3 years 215 days
Weighted-Ave. Exercise/Grant Price $ 4.90
Number Exercisable (in Shares) 15,000
Weighted-Ave. Exercise Price, Exercisable $ 4.90
Range 4 [Member]
 
Note 4 - Stock-Based Compensation (Details) - Stock Awards Outstanding [Line Items]  
Range of Exercise/Grant Prices $ 10.43
Number Outstanding (in Shares) 20,000
Weighted-Ave. Remaining Contractual Life 1 year 324 days
Weighted-Ave. Exercise/Grant Price $ 10.43
Number Exercisable (in Shares) 20,000
Weighted-Ave. Exercise Price, Exercisable $ 10.43