Quarterly report pursuant to Section 13 or 15(d)

Stockholder's Equity - Additional Information (Detail)

v2.4.0.8
Stockholder's Equity - Additional Information (Detail) (USD $)
3 Months Ended 6 Months Ended 6 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 12 Months Ended 6 Months Ended 1 Months Ended 6 Months Ended 0 Months Ended 6 Months Ended 6 Months Ended 6 Months Ended 3 Months Ended 12 Months Ended 6 Months Ended
May 31, 2014
May 31, 2013
May 31, 2014
May 31, 2013
May 31, 2014
Performance Shares [Member]
May 31, 2014
Performance and Market-Based Vesting Condition Options [Member]
Nov. 30, 2013
Performance and Market-Based Vesting Condition Options [Member]
May 31, 2014
Restricted Common Shares [Member]
May 31, 2014
Employee Stock Incentive Plan [Member]
May 31, 2013
Employee Stock Incentive Plan [Member]
May 31, 2014
Employee Stock Incentive Plan [Member]
May 31, 2013
Employee Stock Incentive Plan [Member]
Feb. 28, 2014
Market-Based Vesting Condition Options [Member]
Nov. 30, 2013
Market-Based Vesting Condition Options [Member]
May 31, 2014
Market-Based Vesting Condition Options [Member]
May 31, 2014
Service-Based Vesting Condition Options [Member]
Nov. 30, 2013
Service-Based Vesting Condition Options [Member]
May 31, 2014
David Portnoy [Member]
Restricted Common Shares [Member]
May 31, 2014
Mark Portnoy [Member]
Restricted Common Shares [Member]
May 31, 2012
2012 Plan [Member]
May 31, 2014
2012 Plan [Member]
May 31, 2014
2012 Plan [Member]
Service Based Option [Member]
Nov. 30, 2013
2012 Plan [Member]
Service Based Option [Member]
May 31, 2014
2012 Plan [Member]
Service Based Restricted Shares [Member]
May 31, 2014
2012 Plan [Member]
Performance Based Options [Member]
Nov. 30, 2013
2012 Plan [Member]
Performance Based Options [Member]
May 31, 2014
2012 Plan [Member]
Market Based Options [Member]
Nov. 30, 2013
2012 Plan [Member]
Market Based Options [Member]
May 31, 2014
2012 Plan [Member]
Restricted Common Shares [Member]
May 31, 2014
2012 Plan [Member]
Scenario, Forecast [Member]
Restricted Common Shares [Member]
December One Two Thousand Fourteen [Member]
May 31, 2014
2012 Plan [Member]
Scenario, Forecast [Member]
Restricted Common Shares [Member]
December One Two Thousand Fifteen [Member]
Nov. 30, 2013
2012 Plan [Member]
David Portnoy [Member]
Restricted Common Shares [Member]
Nov. 30, 2013
2012 Plan [Member]
Mark Portnoy [Member]
Restricted Common Shares [Member]
May 31, 2014
2000 Plan [Member]
May 31, 2014
2000 Plan [Member]
Employee Stock Incentive Plan [Member]
Nov. 30, 2013
2000 Plan [Member]
Employee Stock Incentive Plan [Member]
May 31, 2014
2000 Plan [Member]
Employee Stock Incentive Plan [Member]
Minimum [Member]
May 31, 2014
2000 Plan [Member]
Employee Stock Incentive Plan [Member]
Maximum [Member]
May 31, 2014
2006 Plan [Member]
May 31, 2014
2006 Plan [Member]
Employee Stock Incentive Plan [Member]
Nov. 30, 2013
2006 Plan [Member]
Employee Stock Incentive Plan [Member]
May 31, 2014
Stock Option [Member]
May 31, 2013
Stock Option [Member]
Feb. 28, 2014
Stock Option [Member]
Performance Shares [Member]
Nov. 30, 2013
Stock Option [Member]
Performance Shares [Member]
May 31, 2013
Stock Option [Member]
Service-Based Vesting Condition Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                                                                            
Number of share issued to option holder                 32,496 7,500 32,496 7,500                                                           32,496 7,500      
Stock options exercised, value                 $ 48,665 $ 11,825 $ 48,665 $ 11,825                                                                    
Common stock for issuance pursuant to stock options or restricted stock                                         1,500,000                           2,250,000         1,000,000            
Term of options                                                                         5 years 7 years                
Vesting period ranging from, date of grant                                                                     3 years                      
Options exercisable period after termination                                                                     90 days                      
Granted, Shares           40,000 640,000                 1,016,016 1,112,260         400,000 400,000 129,729 261,488 400,000 87,162 200,000             2,500 12,500       653,516 739,760          
Shares issued under stock incentive plans                                         1,621,621                           0         220,342            
Increase in common stock reserved for issuance                                       2,500,000                                                    
Granted, Shares 0   0                                                                                      
Weighted average grant date fair value of options                                                                                           $ 1.67
Options exercised                                                                                   48,665 11,825      
Unrecognized compensation cost related to non-vested share-based compensation arrangements granted         44,000     15,000             6,200           25,000               120,000         25,000         25,000              
Weighted-average period                                                                                   5 months 19 days        
Total fair value of shares vested                                                                                   73,000        
Performance-based or market based vesting condition options 0 0 0 0                                                                                    
Granted, Shares                           213,334                                                             426,666  
Options forfeited                         200,000                                                             400,000    
Options remaining     26,666                                                                                      
Share based compensation recognized on achievement of performance targets           0                                                                                
Compensation expenses recognized without performance target achievement           0                                                                                
Shares granted during period                                                                70,270 59,459                          
Share based compensation, percentage of vesting upon grant                                                         33.33% 33.33% 33.33%                              
Share based compensation vested period fair value                                                         $ 80,000                                  
Maximum restricted common shares granted                                   162,163 186,487                                                      
Description of minimum requirement to be satisfied by employee for restricted common share               The Employment Agreements state if David Portnoy and Mark Portnoy are employed by the Company on November 30, 2014, then no later than February 15, 2015, the Company will grant up to 186,487 and 162,163 shares of restricted common shares, respectively, based on certain performance thresholds, as defined in the agreements.                                                                            
Additional restricted common shares to be granted                                   162,163 186,487                                                      
Description of minimum requirement to be satisfied by employee for additional restricted common share               In addition, if David Portnoy and Mark Portnoy are employed by the Company on November 30, 2015, then no later than February 15, 2016, the Company will grant up to an additional 186,487 and 162,163 shares of restricted common shares, respectively, based on similar performance thresholds, as defined in the agreements.