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Stockholders' Equity - Stock Repurchases, Cash Dividend (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 15 Months Ended
Feb. 29, 2020
Feb. 28, 2019
Feb. 29, 2020
Cash Dividends      
Cash dividends declared (in dollars per share)     $ 0.00
Cash dividend paid $ 2,538 $ 2,279