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Stockholders' Equity - Additional Information (Details) - USD ($) |  |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 06, 2023 | Mar. 08, 2022 | Mar. 11, 2021 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Mar. 11, 2024 | Dec. 31, 2021 | Mar. 08, 2021 | Dec. 31, 2020
Termination date of stock repurchase program |  | Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022 |  |  |  |  |  |  |
Common stock issued under dividend reinvestment plan |  |  |  |  | 17,400 | 26,529 |  |  |  |  |
Shares outstanding at end of period | [1] |  |  |  | 9,198,175 | 9,383,132 | 9,581,536 |  | 9,699,695 |  | 7,516,423
Stock repurchases, value |  |  |  |  | $ 3,832,000 | $ 4,355,000 | $ 3,831,000 |  |  |  |
4.875% Notes due 2026 |  |  |  |  |  |  |  |  |  |  |
Interest Rate |  |  |  |  | 4.875% |  |  |  |  |  |
Stock Repurchase Program |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  |  |  |  |  | $ 10,000,000 |
Period of stock repurchase program |  |  |  | 1 year |  |  |  |  |  |  |
2022 Stock Repurchase Program |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  | $ 10,000,000 |  |  |  |  |  |  |  |
Period of stock repurchase program |  |  | 1 year |  |  |  |  |  |  |  |
2023 Stock Repurchase Program |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  | $ 10,000,000 |  |  |  |  |  |  |  |  |
Renewed Stock Repurchase Program |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  |  |  | $ 10,000,000 |  |  |
2023 Stock Repurchase Program and Renewed Stock Repurchase Program |  |  |  |  |  |  |  |  |  |  |
Stock repurchases, shares |  |  |  |  | 202,357 |  |  |  |  |  |
Stock repurchases, value |  |  |  |  | $ 3,800,000 |  |  |  |  |  |
2023 Stock Repurchase Program and 2022 Stock Repurchase Program |  |  |  |  |  |  |  |  |  |  |
Stock repurchases, shares |  |  |  |  |  | 224,933 |  |  |  |  |
Stock repurchases, value |  |  |  |  |  | $ 4,400,000 |  |  |  |  |
[1] | Totals may not sum due to rounding.

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