Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Additional Information (Detail)

v3.10.0.1
Stockholders' Equity - Additional Information (Detail) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
May 21, 2018
Mar. 08, 2018
Nov. 30, 2017
May 31, 2012
Aug. 31, 2018
Aug. 31, 2017
Feb. 28, 2017
Aug. 31, 2018
Aug. 31, 2017
Nov. 30, 2017
Nov. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Granted, Shares         0 22,500   51,636 22,500    
Weighted average grant date fair value               $ 3.23 $ 3.25    
Shares granted during period               51,636      
Shares earned paid in cash                   $ 444,000  
Stock compensation, number of shares opted to lump sum cash payment               30,000      
Amended And Restated Employment Agreement [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Unrecognized compensation costs         $ 0 $ 0   $ 0 $ 0    
Second Amendment Agreement [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Unrecognized compensation costs         $ 0 $ 80,000   $ 0 $ 80,000    
Description on second amendment to employment agreement               The Amendment provides for the grant of shares of the Company’s common stock based on certain performance measures being attained by the Company during fiscal year 2016 and fiscal year 2017. The Amendment states if Executive is employed by the Company on November 30, 2016 and November 30, 2017, then no later than February 28, 2017 and February 28, 2018, respectively, the Company will grant Executive up to 20,000 shares of restricted stock based on performance as set forth in the Amendment per each fiscal year.      
David Portnoy [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Common stock for issuance pursuant to stock options or restricted stock     186,487             186,487 186,487
Shares granted during period                   91,801 183,145
Shares earned during period                   121,801  
Unrecognized compensation costs     $ 0             $ 0  
Stock compensation, number of shares opted to lump sum cash payment                   30,000  
Mark Portnoy [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Common stock for issuance pursuant to stock options or restricted stock     62,163             62,163 162,163
Shares granted during period                   75,915 159,257
Shares earned during period                   105,915  
Unrecognized compensation costs     $ 0             $ 0  
Stock compensation, number of shares opted to lump sum cash payment                   30,000  
Oleg Mikulinksy [Member] | Second Amendment Agreement [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Common stock for issuance pursuant to stock options or restricted stock             20,000        
Share based compensation options fair value     $ 80,000                
Shares granted during period     14,729       19,620        
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     1,000,000      
Option issued     457,250   380,000     380,000   457,250  
Shares issued under stock incentive plan         322,429     322,429      
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     1,500,000      
Shares issued under stock incentive plan         809,251     809,251      
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              
Service Based Stock Options [Member] | 2012 Plan [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Granted, Shares               621,365      
Service Based Restricted Shares [Member] | 2012 Plan [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Granted, Shares               129,729      
Performance Based Options [Member] | 2012 Plan [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Granted, Shares               823,415      
Market Based Options [Member] | 2012 Plan [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Granted, Shares               116,240      
Service-Based Vesting Condition Options [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Granted, Shares               51,636      
Service-Based Vesting Condition Options [Member] | 2006 Plan [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Unrecognized compensation cost related to non-vested service related share-based compensation arrangements granted         $ 110,000     $ 110,000      
Service-Based Vesting Condition Options [Member] | 2012 Plan [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Unrecognized compensation cost related to non-vested service related share-based compensation arrangements granted         110,000     110,000      
Employee Stock Incentive Plan [Member] | Share-based Compensation Award, Tranche One [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Unrecognized compensation cost related to non-vested service related share-based compensation arrangements granted         89,000     89,000      
Employee Stock Incentive Plan [Member] | Share-based Compensation Award, Tranche Two [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Unrecognized compensation cost related to non-vested service related share-based compensation arrangements granted         19,000     $ 19,000      
Employee Stock Incentive Plan [Member] | 2012 Plan [Member] | Share-based Compensation Award, Tranche One [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share based compensation, vesting percentage               33.30%      
Employee Stock Incentive Plan [Member] | 2012 Plan [Member] | Share-based Compensation Award, Tranche One [Member] | December 1, 2018 [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share based compensation, vesting percentage               33.30%      
Employee Stock Incentive Plan [Member] | 2012 Plan [Member] | Share-based Compensation Award, Tranche One [Member] | November 30, 2019 [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share based compensation, vesting percentage               33.30%      
Employee Stock Incentive Plan [Member] | 2012 Plan [Member] | Share-based Compensation Award, Tranche One [Member] | David Portnoy [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Shares granted during period   23,636                  
Employee Stock Incentive Plan [Member] | 2012 Plan [Member] | Share-based Compensation Award, Tranche One [Member] | Mark Portnoy [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Shares granted during period   20,000                  
Employee Stock Incentive Plan [Member] | 2012 Plan [Member] | Share-based Compensation Award, Tranche Two [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share based compensation, vesting percentage               33.30%      
Employee Stock Incentive Plan [Member] | 2012 Plan [Member] | Share-based Compensation Award, Tranche Two [Member] | December 1, 2018 [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share based compensation, vesting percentage               33.30%      
Employee Stock Incentive Plan [Member] | 2012 Plan [Member] | Share-based Compensation Award, Tranche Two [Member] | November 30, 2019 [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share based compensation, vesting percentage               33.30%      
Employee Stock Incentive Plan [Member] | 2012 Plan [Member] | Share-based Compensation Award, Tranche Two [Member] | Oleg Mikulinksy [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Shares granted during period 8,000                    
Employee Stock Incentive Plan [Member] | Selling, General and Administrative Expenses [Member] | 2012 Plan [Member] | Share-based Compensation Award, Tranche One [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share based compensation options fair value               $ 50,000      
Employee Stock Incentive Plan [Member] | Selling, General and Administrative Expenses [Member] | 2012 Plan [Member] | Share-based Compensation Award, Tranche Two [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share based compensation options fair value               9,000      
Performance and Market-Based Vesting Condition Options [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Granted, Shares           0     0    
Performance and Market-Based Vesting Condition Options [Member] | Share-based Compensation Award, Tranche One [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Unrecognized compensation cost related to non-vested service related share-based compensation arrangements granted         37,000     $ 37,000      
Performance and Market-Based Vesting Condition Options [Member] | Share-based Compensation Award, Tranche One [Member] | David Portnoy [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] | Share-based Compensation Award, Tranche One [Member] | Mark Portnoy [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] | Share-based Compensation Award, Tranche Two [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Unrecognized compensation cost related to non-vested service related share-based compensation arrangements granted         3,000     $ 3,000      
Performance and Market-Based Vesting Condition Options [Member] | Share-based Compensation Award, Tranche Two [Member] | Oleg Mikulinksy [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Shares granted during period               8,000      
Performance and Market-Based Vesting Condition Options [Member] | Selling, General and Administrative Expenses [Member] | Share-based Compensation Award, Tranche One [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share based compensation options fair value               $ 110,000      
Performance and Market-Based Vesting Condition Options [Member] | Selling, General and Administrative Expenses [Member] | Share-based Compensation Award, Tranche Two [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share based compensation options fair value               10,000      
Restricted Common Shares [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Unrecognized compensation cost related to non-vested service related share-based compensation arrangements granted         $ 0 $ 181,000   $ 0 $ 181,000    
Share based compensation options fair value                   $ 756,000  
Stock Option [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Number of share issued to option holder         61,500 0   63,750 26,781    
Options exercised         $ 166,005 $ 0   $ 170,925 $ 51,396    
Stock Option [Member] | Service-Based Vesting Condition Options [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Weighted-average period               1 year 2 months 26 days      
Total fair value of shares vested               $ 138,000