Share Repurchase Plan - Additional Information (Detail) - $ / shares |
9 Months Ended | 141 Months Ended | ||||||
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Aug. 31, 2023 |
Aug. 31, 2022 |
Aug. 31, 2023 |
Nov. 30, 2022 |
Oct. 06, 2016 |
Apr. 08, 2015 |
Jun. 06, 2012 |
Dec. 31, 2011 |
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| Equity, Class of Treasury Stock [Line Items] | ||||||||
| Number of shares authorized to repurchase | 8,000,000 | 6,000,000 | 3,000,000 | 1,000,000 | ||||
| Share repurchase plan | open market purchases, privately negotiated block trades, unsolicited negotiated transactions, and/or pursuant to any trading plan that may be adopted in accordance with Rule 10b5-1 of the Securities and Exchange Commission | |||||||
| Treasury stock, shares | 6,562,461 | 6,562,461 | 6,347,490 | |||||
| Common Stock [Member] | ||||||||
| Equity, Class of Treasury Stock [Line Items] | ||||||||
| Treasury stock, shares | 6,562,461 | 6,562,461 | ||||||
| Repurchase agreement, purchase price per share | $ 3.72 | $ 8.11 | $ 3.57 | |||||
| Number of shares repurchased | 214,971 | 208,790 | ||||||
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. No definition available.
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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Description of share repurchase program, including accounting treatment. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of previously issued common shares repurchased by the issuing entity and held in treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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