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EQUITY-BASED INCENTIVE AWARDS - Authorized and Approved Restricted Stock Unit Awards (Details) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2019 | Oct. 31, 2018 | Oct. 31, 2017 | Oct. 31, 2015 | Sep. 30, 2020 | Sep. 30, 2019
Restricted Stock Units |  |  |  |  |  |
EQUITY-BASED INCENTIVE AWARD |  |  |  |  |  |
Original number of awards issued |  |  |  |  | 14,550 |
Non-vested awards outstanding at the end of the period (in shares) |  |  |  |  | 28,971 | 28,151
Direct cost to the recipients of the restricted stock units |  |  |  |  | $ 0 |
Compensation expense |  |  |  |  | 1,000,000 | $ 1,200,000
Tax benefit related to compensation expense |  |  |  |  | 200,000 | 300,000
Total intrinsic value of equity-based compensation awards vested |  |  |  |  | 900,000 | $ 1,100,000
Total unamortized compensation expense |  |  |  |  | $ 1,100,000 |
Period over which unamortized compensation expense is expected to be amortized |  |  |  |  | 16 months |
Restricted Stock Units Awarded October 2015 |  |  |  |  |  |
EQUITY-BASED INCENTIVE AWARD |  |  |  |  |  |
Original number of awards issued |  |  |  | 13,250 |  |
Estimated fair value of award at grant date |  |  |  | $ 1,112,000 |  |
Non-vested awards outstanding at the end of the period (in shares) |  |  |  |  | 50 |
Fair value of non-vested awards at the end of the period |  |  |  |  | $ 3,000 |
Vested as of the end of the period (in shares) |  |  |  |  | 13,200 |
Units scheduled to vest |  |  |  |  | 50 |
Restricted Stock Units Awarded October 2015 | Minimum |  |  |  |  |  |
EQUITY-BASED INCENTIVE AWARD |  |  |  |  |  |
Service period |  |  |  | 36 months |  |
Restricted Stock Units Awarded October 2015 | Maximum |  |  |  |  |  |
EQUITY-BASED INCENTIVE AWARD |  |  |  |  |  |
Service period |  |  |  | 60 months |  |
Restricted Stock Units Awarded October 2017 |  |  |  |  |  |
EQUITY-BASED INCENTIVE AWARD |  |  |  |  |  |
Original number of awards issued |  |  | 13,000 |  |  |
Service period |  |  | 36 months |  |  |
Estimated fair value of award at grant date |  |  | $ 1,177,000 |  |  |
Non-vested awards outstanding at the end of the period (in shares) |  |  |  |  | 4,334 |
Fair value of non-vested awards at the end of the period |  |  |  |  | $ 280,000 |
Vested as of the end of the period (in shares) |  |  |  |  | 8,666 |
Units scheduled to vest |  |  |  |  | 4,334 |
Restricted Stock Units Awarded October 2018 |  |  |  |  |  |
EQUITY-BASED INCENTIVE AWARD |  |  |  |  |  |
Original number of awards issued |  | 15,050 |  |  |  |
Service period |  | 36 months |  |  |  |
Estimated fair value of award at grant date |  | $ 1,264,000 |  |  |  |
Non-vested awards outstanding at the end of the period (in shares) |  |  |  |  | 10,037 |
Fair value of non-vested awards at the end of the period |  |  |  |  | $ 648,000 |
Vested as of the end of the period (in shares) |  |  |  |  | 5,013 |
Restricted Stock Units Awarded October 2018 | Vest in October 2020 |  |  |  |  |  |
EQUITY-BASED INCENTIVE AWARD |  |  |  |  |  |
Units scheduled to vest |  |  |  |  | 5,018 |
Restricted Stock Units Awarded October 2018 | Vest in October 2021 |  |  |  |  |  |
EQUITY-BASED INCENTIVE AWARD |  |  |  |  |  |
Units scheduled to vest |  |  |  |  | 5,019 |
Restricted Stock Units Awarded October 2019 |  |  |  |  |  |
EQUITY-BASED INCENTIVE AWARD |  |  |  |  |  |
Original number of awards issued | 14,550 |  |  |  |  |
Service period | 36 months |  |  |  |  |
Estimated fair value of award at grant date | $ 1,007,000 |  |  |  |  |
Non-vested awards outstanding at the end of the period (in shares) |  |  |  |  | 14,550 |
Fair value of non-vested awards at the end of the period |  |  |  |  | $ 940,000 |
Units scheduled to vest |  |  |  |  | 14,550 |

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- Definition Amount of direct cost applicable to the recipients of the nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References No definition available. + Details
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- Definition Represents the estimated fair value of equity-based awards on the grant date. + References No definition available. + Details
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- Definition Represents the estimated fair value of nonvested equity-based awards at the end of the reporting period. + References No definition available. + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that are scheduled to vest in the future. + References No definition available. + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were vested as of the reporting date. + References No definition available. + Details
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of equity-based awards for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments or cash in accordance with the terms of the arrangement. + References No definition available. + Details
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 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 (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + 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 (i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + 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 (i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Amount of tax benefit for recognition of expense of award under share-based payment arrangement. + 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 (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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 (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + 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 (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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