Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Additional Information (Detail)

v3.21.1
Stockholders' Equity - Additional Information (Detail) - USD ($)
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 27, 2020
Aug. 30, 2019
Dec. 20, 2019
May 31, 2012
Feb. 28, 2021
Feb. 29, 2020
Nov. 30, 2020
Nov. 30, 2019
Nov. 30, 2018
Dec. 01, 2011
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Plan modification description and terms         The options were issued under the Company’s 2012 Stock Plan and will vest 1/3 upon grant, 1/3 on December 1, 2020 and the remaining 1/3 on November 30, 2021.          
Shares granted during period         0 0        
Selling, General and Administrative Expenses [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Unrecognized compensation cost related to non-vested share-based compensation arrangements granted         $ 73,000          
Share based compensation options fair value         40,000          
David Portnoy [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Granted, Shares     23,636              
Mark Portnoy [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Granted, Shares     20,000              
Oleg Mikulinksy [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Granted, Shares                 8,000  
Unrecognized compensation cost related to non-vested share-based compensation arrangements granted         $ 2,000          
Stock Option [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Number of share issued to option holder         25,300 20,000        
Options exercised         $ 191,622 $ 41,000        
Service-Based Vesting Condition Options [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Unrecognized compensation cost related to non-vested share-based compensation arrangements granted         $ 269,000          
Service-Based Vesting Condition Options [Member] | Stock Option [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Granted, Shares         0 44,969        
Weighted-average period         2 years 1 month 28 days          
Total fair value of shares vested         $ 118,000          
Performance and Market-Based Vesting Condition Options [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Plan modification description and terms         These options were issued under the Company’s 2012 Stock Plan and vested 1/3 upon date of grant, 1/3 on December 1, 2019 and 1/3 on November 30, 2020.          
Performance and Market-Based Vesting Condition Options [Member] | Selling, General and Administrative Expenses [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Unrecognized compensation cost related to non-vested share-based compensation arrangements granted         $ 0          
Share based compensation options fair value         0 $ 86,000        
Performance and Market-Based Vesting Condition Options [Member] | David Portnoy [Member] | Share-based Compensation Award, Tranche One [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Shares granted during period                 47,273  
Performance and Market-Based Vesting Condition Options [Member] | Mark Portnoy [Member] | Share-based Compensation Award, Tranche One [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Shares granted during period                 40,000  
Performance and Market-Based Vesting Condition Options [Member] | Non Qualified Stock Options [Member] | David Portnoy [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Shares granted during period   26,243                
Performance and Market-Based Vesting Condition Options [Member] | Non Qualified Stock Options [Member] | Mark Portnoy [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Shares granted during period   22,222                
Market Based Vesting Condition Options                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Unrecognized compensation cost related to non-vested share-based compensation arrangements granted         0          
Market Based Vesting Condition Options | Share-based Payment Arrangement, Tranche Two                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Shares forfeited during period 1,333             4,444    
Market Based Vesting Condition Options | Selling, General and Administrative Expenses [Member] | Share-based Payment Arrangement, Tranche Two | September 4, 2019 Granted Options [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Share based compensation options fair value         200 7,600        
Market Based Vesting Condition Options | Selling, General and Administrative Expenses [Member] | Share-based Payment Arrangement, Tranche Two | February 27, 2020 Granted Options [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Share based compensation options fair value         $ 1,000 $ 2,000        
Market Based Vesting Condition Options | Stock Option [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Granted, Shares         0 0        
2006 Plan [Member] | Employee Stock Incentive Plan [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Common stock for issuance pursuant to stock options or restricted stock         1,000,000          
Option issued         305,000   305,000      
Shares issued under stock incentive plan         0          
2012 Plan [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Common stock for issuance pursuant to stock options or restricted stock                   1,500,000
Shares issued under stock incentive plan         562,310          
2012 Plan [Member] | Service Based Stock Options [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Granted, Shares         843,143   868,443      
2012 Plan [Member] | Service Based Restricted Shares [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Granted, Shares         129,729   129,729      
2012 Plan [Member] | Performance Based Options [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Granted, Shares         530,851   530,851      
2012 Plan [Member] | Market Based Options [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Granted, Shares         116,218   116,218      
2012 Plan [Member] | Employee Stock Incentive Plan [Member]                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Increase in common stock reserved for issuance       2,500,000