Stock-based Compensation - Narrative and Assumptions (Details) - USD ($) |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|
May 31, 2017 |
Feb. 28, 2017 |
May 31, 2016 |
May 31, 2017 |
May 31, 2016 |
Nov. 30, 2016 |
Nov. 30, 2015 |
Aug. 13, 2015 |
Jun. 15, 2005 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||||
| Granted (shares) | 0 | 0 | 519,000 | 185,000 | |||||
| Weighted average exercise price (usd per share) | $ 0 | $ 3.23 | $ 3.46 | ||||||
| Share-based compensation | $ 51,079 | $ 70,488 | $ 78,471 | $ 140,977 | |||||
| Restated 2003 Stock Option Plan | |||||||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||||
| Number of shares authorized to be repurchased (shares) | 1,000,000 | ||||||||
| 2015 CCA Industries Incentive Plan | |||||||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||||
| Number of shares authorized to be repurchased (shares) | 700,000 | ||||||||