Common Stock and Options - Schedule of Options (Details) - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2018 |
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| Number ofOptions | |||
| Beginning balance (in shares) | 227,500 | 675,000 | |
| Employee stock options granted (in shares) | 118,000 | 10,000 | 300,000 |
| Forfeitures/expired (in shares) | (52,500) | (457,500) | |
| Ending balance (in shares) | 293,000 | 227,500 | 675,000 |
| WeightedAverageExercisePrice | |||
| Beginning balance (in dollars per share) | $ 31.46 | $ 30.02 | |
| Granted (in dollars per share) | 33.96 | 33.34 | |
| Forfeitures/expired (in dollars per share) | 33.60 | 29.37 | |
| Ending balance (in dollars per share) | $ 32.09 | $ 31.46 | $ 30.02 |
| WeightedAverageRemainingContractualTerm(years) | |||
| Weighted average remaining contractual term | 1 year 9 months 14 days | 1 year 2 months 19 days | 2 years 2 months 19 days |
| Granted | 2 years 3 months | 2 years 3 months | |
| Forfeitures/expired | 0 years | 1 year 9 months 10 days | |
| Exercised | 0 years | 0 years | |
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- Definition Weighted average remaining contractual term for option awards exercised. No definition available.
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- Definition Share-based compensation arrangement by share-based payment award options weighted average remaining contractual term abstract. No definition available.
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeited Or Expired, Weighted Average Remaining Contractual Term No definition available.
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Options, Granted, Weighted Average Remaining Contractual Term No definition available.
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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted average price of options that were either forfeited or expired. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Gross number of share options (or share units) granted during the period. No definition available.
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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