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Stock-Based Compensation (Details) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2018 USD ($) shares | Jun. 30, 2017 USD ($) | Jun. 30, 2018 USD ($) tranche award $ / shares shares | Jun. 30, 2017 USD ($)
Schedule Of Earnings Per Share Basic And Diluted [Line Items] |  |  |  |
Outstanding share awards earned and issued at greater than the target number of shares |  |  | 200.00% |
2016 Plan |  |  |  |
Schedule Of Earnings Per Share Basic And Diluted [Line Items] |  |  |  |
Aggregate number of shares that may be awarded (in shares) | 646,000 |  | 646,000 |
Exercise period for shares awarded under plan |  |  | 10 years |
Number of tranches in award | tranche |  |  | 2 |
Outstanding share awards that may be awarded (in shares) | 255,000 |  | 255,000 |
Share-based compensation expense (benefit) | $ | $ 186 | $ 139 | $ 428 | $ 484
Total unrecognized compensation cost related to performance and restricted shares | $ | $ 934 |  | $ 934 |
Period of recognized compensation cost (in years) |  |  | 1 year 5 months |
2016 Plan | Performance shares |  |  |  |
Schedule Of Earnings Per Share Basic And Diluted [Line Items] |  |  |  |
Performance period (in years) |  |  | 3 years |
Shares granted in period (in shares) |  |  | 68,000 |
Shares forfeited in period (in shares) |  |  | 5,000 |
2016 Plan | Performance shares | Minimum |  |  |  |
Schedule Of Earnings Per Share Basic And Diluted [Line Items] |  |  |  |
Common shares earned pursuant to award (in shares) |  |  | 0 |
2016 Plan | Performance shares | Maximum |  |  |  |
Schedule Of Earnings Per Share Basic And Diluted [Line Items] |  |  |  |
Common shares earned as percentage of initial target number shares awarded |  |  | 200.00% |
2016 Plan | Performance and Restricted Shares |  |  |  |
Schedule Of Earnings Per Share Basic And Diluted [Line Items] |  |  |  |
Shares granted in period (in shares) |  |  | 119,000 |
Shares granted in period, grant date fair value (in dollars per share) | $ / shares |  |  | $ 6.70 |
Vesting period (in years) |  |  | 3 years |
2016 Plan | Restricted Stock |  |  |  |
Schedule Of Earnings Per Share Basic And Diluted [Line Items] |  |  |  |
Shares granted in period (in shares) |  |  | 51,000 |
Shares forfeited in period (in shares) |  |  | 3,000 |
2016 Plan | Restricted Stock | Director |  |  |  |
Schedule Of Earnings Per Share Basic And Diluted [Line Items] |  |  |  |
Shares granted in period (in shares) |  |  | 47,000 |
Shares granted in period, grant date fair value (in dollars per share) | $ / shares |  |  | $ 6.55 |
Vesting period (in years) |  |  | 1 year |
Number of awards | award |  |  | 1 |
Shares vested in period (in shares) |  |  | 33,000 |
2016 Plan | Restricted Stock | Minimum |  |  |  |
Schedule Of Earnings Per Share Basic And Diluted [Line Items] |  |  |  |
Vesting period (in years) |  |  | 1 year |
2016 Plan | Restricted Stock | Maximum |  |  |  |
Schedule Of Earnings Per Share Basic And Diluted [Line Items] |  |  |  |
Vesting period (in years) |  |  | 3 years |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + 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=109197908&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=109197908&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=109197908&loc=d3e5070-113901 + Details
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