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The Incentive Stock Plans (Tables) | 12 Months Ended
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Sep. 30, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Incentive Stock Plans Option Activity | The following table summarizes option activity from September 30, 2019 through September 30, 2020:
|  | Shares Available for Grant |  |  | Options Outstanding |  |  | Aggregate Intrinsic Value (in thousands) |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Life |
Balance as of September 30, 2019 |  |  | 715,590 |  |  |  | 484,031 |  |  | $ | 1,569 |  |  | $ | 12.42 |  |  |  | 3.7 |
Shares authorized |  |  | 1,000,000 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  |  |
Options granted |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  |  |
Options cancelled/forfeited/expired |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  |  |
Options exercised |  |  | — |  |  |  | (287,702 | ) |  |  | — |  |  |  | 12.63 |  |  |  |  |
Restricted stock awards granted |  |  | (477,271 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  |  |
Restricted stock awards forfeited |  |  | 49,188 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  |  |
Additional shares of stock issued |  |  | (12,092 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  |  |
Balance as of September 30, 2020 |  |  | 1,275,415 |  |  |  | 196,329 |  |  | $ | 2,636 |  |  | $ | 12.12 |  |  |  | 2.5 |
Exercisable as of September 30, 2020 |  |  |  |  |  |  | 196,239 |  |  | $ | 2,636 |  |  | $ | 12.12 |  |  |  | 2.5 |
Weighted Average Assumptions of Incentive Stock Plans | Below are the weighted-average assumptions used for the fiscal year ended September 30, 2018. No options were granted for the fiscal years ended September 30, 2019 or September 30, 2020.
|  | 2018 |  |  | 2019 |  |  | 2020 |
Dividend yield |  | 0.0% |  |  | — |  |  | — |
Risk-free interest rate |  | 2.7% |  |  | — |  |  | — |
Volatility |  | 45.4% |  |  | — |  |  | — |
Expected life |  | 5.0 years |  |  | — |  |  | — |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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