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Equity Plans and Equity Based Compensation - Narrative (Details) - USD ($) |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
May 21, 2020 | Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2020 | Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of options granted (in shares) |  | 0 | 0 |  |
Stock compensation expense |  | $ 188,000 | $ 182,000 |  |
Stock compensation expense, net of tax |  | $ 613,000 | 534,000 |  |
Outstanding stock options (in shares) |  | 0 |  |  | 0
Stock Options |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock compensation expense |  | $ 0 | 0 |  |
Unrecognized compensation expense |  | 0 | 0 |  |
Restricted Stock |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Unrecognized compensation expense |  | $ 6,188,000 | $ 5,516,000 |  |
Awards granted during period percentage |  |  |  | 66.67% |
Awards granted cash credit entitlement percentage |  |  |  | 33.33% |
Restricted stock granted during period (in shares) |  | 87,918 | 80,390 |  |
Unvested restricted stock awards (in shares) |  | 186,307 |  |  | 116,632
Restricted Stock | Executive Officers |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Awards granted during period percentage |  | 100.00% |  |  |
Restricted Stock | Director |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award vesting percentage |  | 100.00% |  |  |
Restricted Stock | Vesting Period One |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award vesting percentage |  |  |  | 100.00% |
Restricted Stock | Vesting Period One | Executive Officers |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award vesting percentage |  | 33.33% |  |  |
Restricted Stock | Vesting Period Two |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award vesting percentage |  |  |  | 50.00% |
Restricted Stock | Vesting Period Two | Executive Officers |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award vesting percentage |  | 33.33% |  |  |
Restricted Stock | Vesting Period Three | Executive Officers |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award vesting percentage |  | 33.33% |  |  |
2009 Long-Term Equity Incentive Plan | Restricted Stock | Vesting Period Three |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award vesting percentage |  |  |  | 50.00% |
2019 LTI Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of shares authorized for issuance (in shares) |  | 1,000,000 |  |  |
2019 ESPP |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of shares reserved for new grants (in shares) | 750,000 |  |  |  |
Offering periods (in months) | 3 months |  |  |  |
Purchase price percentage | 95.00% |  |  |  |
2019 ESPP | Employee Stock |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock compensation expense |  | $ 12,000 | $ 12,000 |  |
Unrecognized compensation expense |  | 0 | 0 |  |
Stock compensation expense, net of tax |  | $ 9,000 | $ 9,000 |  |

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