XML 91 R75.htm IDEA: XBRL DOCUMENT v3.7.0.1
Note 16 - Stock-based Compensation Plans - Options Outstanding and Options Exercisable (Details)
 12 Months Ended
Jan. 31, 2017
$ / shares
shares
Weighted Average Exercise Price, Options Outstanding (in dollars per share) $ 12.36
Number of Stock Options, Options Outstanding (in shares) | shares 526,321
Weighted Average Remaining Contractual Life, Options Outstanding (Year) 4 years 73 days
Weighted Average Exercise Price, Options Exercisable (in dollars per share) $ 9.88
Number of Stock Options, Options Exercisable (in shares) | shares 286,529
Range 1 [Member]  
Range of Exercise Prices, Lower Limit (in dollars per share) $ 4.80
Range of Exercise Prices, Upper Limit (in dollars per share) 5.45
Weighted Average Exercise Price, Options Outstanding (in dollars per share) $ 4.84
Number of Stock Options, Options Outstanding (in shares) | shares 108,389
Weighted Average Remaining Contractual Life, Options Outstanding (Year) 1 year 36 days
Weighted Average Exercise Price, Options Exercisable (in dollars per share) $ 4.84
Number of Stock Options, Options Exercisable (in shares) | shares 108,389
Range 2 [Member]  
Range of Exercise Prices, Lower Limit (in dollars per share) $ 6.79
Range of Exercise Prices, Upper Limit (in dollars per share) 6.79
Weighted Average Exercise Price, Options Outstanding (in dollars per share) $ 6.79
Number of Stock Options, Options Outstanding (in shares) | shares 32,000
Weighted Average Remaining Contractual Life, Options Outstanding (Year) 2 years 146 days
Weighted Average Exercise Price, Options Exercisable (in dollars per share) $ 6.79
Number of Stock Options, Options Exercisable (in shares) | shares 24,000
Range 3 [Member]  
Range of Exercise Prices, Lower Limit (in dollars per share) $ 11.50
Range of Exercise Prices, Upper Limit (in dollars per share) 11.66
Weighted Average Exercise Price, Options Outstanding (in dollars per share) $ 11.65
Number of Stock Options, Options Outstanding (in shares) | shares 215,000
Weighted Average Remaining Contractual Life, Options Outstanding (Year) 4 years 146 days
Weighted Average Exercise Price, Options Exercisable (in dollars per share) $ 11.65
Number of Stock Options, Options Exercisable (in shares) | shares 105,500
Range 4 [Member]  
Range of Exercise Prices, Lower Limit (in dollars per share) $ 18.81
Range of Exercise Prices, Upper Limit (in dollars per share) 20.45
Weighted Average Exercise Price, Options Outstanding (in dollars per share) $ 19.05
Number of Stock Options, Options Outstanding (in shares) | shares 170,932
Weighted Average Remaining Contractual Life, Options Outstanding (Year) 6 years 109 days
Weighted Average Exercise Price, Options Exercisable (in dollars per share) $ 18.81
Number of Stock Options, Options Exercisable (in shares) | shares 48,640