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Stockholders' Equity - Additional Information (Details) - USD ($) |  |  | 3 Months Ended |
--- | --- | --- | --- | ---
Mar. 06, 2023 | Mar. 08, 2022 | Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Termination date of stock repurchase program |  | Mar. 31, 2024 | Mar. 31, 2023 |  |  |  |  |
Common stock issued under dividend reinvestment plan |  |  |  | 10,433 |  | 14,493 |  |
Shares outstanding at end of period |  |  |  | 9,556,356 | [1],[2] | 9,676,705 | [1],[2] | 9,581,536
Stock repurchases, value | [1] |  |  | $ 792,000 |  | $ 545,000 |  |
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 |  |  |  |  |
Renewed Stock Repurchase Program |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  | $ 10,000,000 |  |  |  |  |  |
Period of stock repurchase program |  | 1 year |  |  |  |  |  |
Stock repurchases, shares |  |  |  | 35,613 |  | 22,990 |  |
Stock repurchases, value |  |  |  | $ 792,000,000 |  | $ 545,000 |  |
[1] | Refer to Note 9 "Stockholders' Equity" for additional information on changes in components of Stockholders' Equity
[2] | Totals may not sum due to rounding.

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