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Stockholders' Equity - Additional Information (Detail) - USD ($) |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
May 21, 2018 | Mar. 08, 2018 | Aug. 30, 2019 | May 31, 2012 | Aug. 31, 2019 | May 31, 2019 | Aug. 31, 2018 | Feb. 28, 2017 | Aug. 31, 2019 | Aug. 31, 2018 | Nov. 30, 2019 | Nov. 30, 2018 | Nov. 30, 2017 | Nov. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Granted, Shares |  |  |  |  |  |  |  |  | 112,465 |  |  |  |  |
Weighted average grant date fair value |  |  |  |  |  |  |  |  | $ 3.32 | $ 3.23 |  |  |  |
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. |  |  |  |  |
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, 2018 and the remaining 1/3 on November 30, 2019 |  |  |  |  |
Shares earned paid in cash |  |  |  |  |  |  |  |  |  |  |  |  | $ 444,000 |
Stock compensation, number of shares opted to lump sum cash payment |  |  |  |  |  |  |  |  | 30,000 | 30,000 |  |  |  |
Unrecognized compensation cost related to non-vested options |  |  |  |  | $ 19,000 |  |  |  | $ 19,000 |  |  |  |  |
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 |  | $ 0 |  | 0 | 0 |  |  |  |
Unrecognized compensation cost related to non-vested options |  |  |  |  | 5,000 |  |  |  | 5,000 |  |  |  |  |
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 |
Granted, Shares |  | 23,636 |  |  |  |  |  |  |  |  |  |  |  |
Shares granted during period |  |  |  |  |  |  |  |  |  |  |  |  | 91,801 | 183,145
Shares earned during period |  |  |  |  |  |  |  |  |  |  |  |  | 121,801 |
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 |  |  |  |  |  |  |  |  |  |  |  |  | 162,163 |
Granted, Shares |  | 20,000 |  |  |  |  |  |  |  |  |  |  |  |
Shares granted during period |  |  |  |  |  |  |  |  |  |  |  |  | 75,915 | 159,257
Shares earned during period |  |  |  |  |  |  |  |  |  |  |  |  | 105,915 |
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 |  |  |  |  |  |
Granted, Shares | 8,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Share based compensation options fair value |  |  |  |  |  |  |  |  | 14,000 | 9,000 |  |  | $ 80,000 |
Shares granted during period |  |  |  |  |  |  |  | 19,620 |  |  |  |  | 14,729 |
Optionee [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Granted, Shares |  |  |  |  |  | 1,500 |  |  |  |  |  |  |  |
Performance And Market 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 |  |  |  |  | $ 45,000 |  |  |  | $ 45,000 |  |  |  |  |
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 |  |  |  |  | 370,000 |  |  |  | 370,000 |  |  | 380,000 |  |
Shares issued under stock incentive plan |  |  |  |  | 0 |  |  |  | 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 |  |  |  | 1,500,000 |  |  |  |  |
Shares issued under stock incentive plan |  |  |  |  | 0 |  |  |  | 0 |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |
Selling, General and Administrative Expenses [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share based compensation options fair value |  |  |  |  |  |  |  |  | $ 57,000 | $ 50,000 |  |  |  |
Service Based Stock Options [Member] | 2012 Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Granted, Shares |  |  |  |  |  |  |  |  | 732,330 |  |  |  |  |
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 |  |  |  |  |  |  |  |  | 823,300 |  |  |  |  |
Market Based Options [Member] | 2012 Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Granted, Shares |  |  |  |  |  |  |  |  | 116,218 |  |  |  |  |
Service-Based Vesting Condition Options [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Granted, Shares |  |  |  |  | 110,965 |  | 0 |  | 112,465 | 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 share-based compensation arrangements granted |  |  |  |  | $ 295,000 |  |  |  | $ 295,000 |  |  |  |  |
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 share-based compensation arrangements granted |  |  |  |  | 295,000 |  |  |  | $ 295,000 |  |  |  |  |
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] | Oleg Mikulinksy [Member] | Share-based Compensation Award, Tranche Two [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] | 2018 Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unrecognized compensation cost related to non-vested share-based compensation arrangements granted |  |  |  |  | 5,000 |  |  |  | $ 5,000 |  |  |  |  |
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 |  |  |  |  | 107,000 |  |  |  | 107,000 |  |  |  |  |
Share based compensation options fair value |  |  |  |  |  |  |  |  | 54,000 |  |  |  |  |
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 |  |  |  |  |  |  |  |  | 136,000 |  |  |  |  |
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 |  |  |  |  |  |  |  |  | 14,000 |  |  |  |  |
Market-Based Vesting Condition Options [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 |  |  |  |  |  |  |  |  | $ 15,000 |  |  |  |  |
Shares forfeited during period |  |  |  |  |  |  |  |  | 4,444 |  |  |  |  |
Market-Based Vesting Condition Options [Member] | Scenario, Forecast [Member] | Share-based Compensation Award, Tranche Two [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares forfeited during period |  |  |  |  |  |  |  |  |  |  | 2,666 |  |  |
Market-Based Vesting Condition Options [Member] | David Portnoy [Member] | Scenario, Forecast [Member] | Share-based Compensation Award, Tranche One [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares forfeited during period |  |  |  |  |  |  |  |  |  |  | 15,756 |  |  |
Market-Based Vesting Condition Options [Member] | Mark Portnoy [Member] | Scenario, Forecast [Member] | Share-based Compensation Award, Tranche One [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares forfeited during period |  |  |  |  |  |  |  |  |  |  | 13,332 |  |  |
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 |  |  |  |  | (1,000) |  |  |  | $ 5,500 |  |  |  |  |
Restricted Common Shares [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 |  | $ 0 |  | $ 0 | $ 0 |  |  |  |
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 |  |  |  |  | 0 |  | 61,500 |  | 2,500 | 63,750 |  |  |  |
Options exercised |  |  |  |  | $ 0 |  | $ 166,005 |  | $ 5,700 | $ 170,925 |  |  |  |
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 3 months 29 days |  |  |  |  |
Total fair value of shares vested |  |  |  |  |  |  |  |  | $ 168,000 |  |  |  |  |
Non Qualified Stock Options [Member] | Performance And Market Based Vesting Condition Options [Member] | David Portnoy [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares granted during period |  |  | 26,243 |  |  |  |  |  |  |  |  |  |  |
Non Qualified Stock Options [Member] | Performance And Market Based Vesting Condition Options [Member] | Mark Portnoy [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares granted during period |  |  | 22,222 |  |  |  |  |  |  |  |  |  |  |

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