Stock-based Compensation (Details 2) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
May 31, 2019 |
May 31, 2018 |
|
| Share-based Compensation [Abstract] | ||
| Share-based Compensation | $ 1,350 | $ 1,358 |
| Share based compensation expense and related income tax benefits | ||
| Income tax benefits | $ 284 | $ 306 |