XML 44 R34.htm IDEA: XBRL DOCUMENT v3.3.1.900
Stock-Based Compensation - Additional Information (Details)
$ / shares in Units, $ in Thousands
3 Months Ended
Jan. 08, 2016
$ / shares
shares
Jan. 04, 2016
director
$ / shares
shares
Jan. 31, 2016
USD ($)
Jan. 31, 2015
USD ($)
Apr. 30, 2011
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock compensation expense | $     $ 462 $ 211  
2005 Stock Incentive Plan [Member] | Board of Director Members for October Two Thousand Eleven Option Grants [Member] | Maximum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Term of vested stock options     5 years    
2005 Stock Incentive Plan [Member] | Board of Director Members for April Two Thousand Eleven Option Grants [Member] | Minimum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Term of vested stock options     2 years    
2005 Stock Incentive Plan [Member] | Stock Options [Member] | Board of Director Members for October Two Thousand Eleven Option Grants [Member] | Maximum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock options vesting period     5 years    
2005 Stock Incentive Plan [Member] | Stock Options [Member] | Board of Director Members for April Two Thousand Eleven Option Grants [Member] | Minimum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock options vesting period     1 year    
2011 Management Incentive Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock shares authorized under ESPP         1,500,000
Number of non-employee directors | director   12      
2011 Management Incentive Plan [Member] | Non-employee directors [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted stock closing price awarded | $ / shares   $ 48.46      
2011 Management Incentive Plan [Member] | Executive officers [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted stock closing price awarded | $ / shares $ 48.68        
2011 Management Incentive Plan [Member] | Stock Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted shares issued per non-employee director   1,750      
2011 Management Incentive Plan [Member] | Restricted Stock [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Total restricted shares issued to non-employee directors   21,000      
2011 Management Incentive Plan [Member] | Restricted Stock [Member] | Non-employee directors [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock compensation expense | $     $ 100    
2011 Management Incentive Plan [Member] | Restricted Stock [Member] | Executive officers [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock compensation expense | $     $ 100    
Total restricted shares issued 24,582        
Shares vesting schedule per year     .33    
Shares vesting schedule beginning date     Jan. 08, 2017