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Stock Compensation Plans (Details) - USD ($) $ in Thousands | 9 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jan. 28, 2020 | Mar. 31, 2019 | Jan. 27, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Aggregate intrinsic value of options exercised during the period | $ 640 | $ 751 |  |  |
Number of unvested stock options (shares) | 141,570 | 155,750 |  |  |
Unvested stock options, aggregate grant date fair value | $ 559 | $ 485 |  |  |
Unvested stock options, aggregate intrinsic value | $ 118 |  |  |  |
Stock options vested during period (shares) | 13,100 | 37,300 |  |  |
Stock options vested during period, aggregate grant date fair value |  | $ 88 |  |  |
Stock options, outstanding, aggregate intrinsic value | $ 1,380 | $ 4,530 |  |  |
Unrecognized compensation expense, non-vested options | $ 466 |  |  |  |
Unrecognized compensation expense, non-vested options, amortization period (in years) | 2 years 1 month 24 days |  |  |  |
Stock Options |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of shares authorized | 300,000 |  |  |  |
Award vesting percentage | 20.00% |  |  |  |
Award vesting period (years) | 5 years |  |  |  |
Restricted Stock |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Contractual term | 10 years |  |  |  |
Number of unvested shares | 0 |  |  | 0 |
Equity Incentive Plan 2014 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of shares authorized |  |  |  |  | 352,366
Equity Incentive Plan 2019 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of shares authorized | 350,000 |  | 350,000 |  |
MRDP | Stock Grant Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Restricted stock grants awarded (shares) | 0 | 0 |  |  |

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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 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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