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v3.23.3

Stock-Based and Other Long-Term Incentive Compensation - Restricted Stock, Narrative (Details) $ in Millions |  |  |  |  |  | 9 Months Ended
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2023 shares | May 09, 2023 independent_director shares | Apr. 25, 2023 shares | Aug. 15, 2022 executive_officer shares | Apr. 26, 2022 independent_director shares | Sep. 30, 2023 USD ($) shares | Sep. 30, 2022 USD ($)
Restricted Stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted (in shares) |  |  |  |  |  | 153,656 |
Canceled/Forfeited (in shares) |  |  |  |  |  | 14,357 |
Share-based compensation expense | $ |  |  |  |  |  | $ 1.7 | $ 1.0
Restricted Stock | Directors |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted (in shares) |  |  |  |  | 4,212 |  |
Number of independent directors | independent_director |  |  |  |  | 3 |  |
Award vesting period |  |  |  |  | 1 year |  |
Restricted Stock | Executive Officers |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted (in shares) |  |  |  | 32,040 |  |  |
Award vesting period |  |  |  | 3 years |  |  |
Number of executive officers | executive_officer |  |  |  | 2 |  |  |
Canceled/Forfeited (in shares) |  |  | 11,024 |  |  |  |
Restricted Stock | Chief Executive Officer |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted (in shares) |  |  | 58,790 | 60,839 |  |  |
Restricted Stock | Chief Technical Officer |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted (in shares) |  |  | 27,840 |  |  |  |
Award vesting period |  |  | 3 years |  |  |  |
Restricted Stock Units (RSUs) | Directors |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted (in shares) |  | 9,470 |  |  |  |  |
Number of independent directors | independent_director |  | 4 |  |  |  |  |
Award vesting period |  | 1 year |  |  |  |  |
Restricted Stock Units (RSUs) | Chief Executive Officer |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted (in shares) | 10,101 |  |  |  |  |  |
Award vesting period | 1 year |  |  |  |  |  |

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