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Stockholders' Equity - Additional Information (Details) - USD ($)

3 Months Ended

6 Months Ended

Mar. 06, 2023

Mar. 08, 2022

Jun. 30, 2023

Mar. 31, 2023

Jun. 30, 2022

Mar. 31, 2022

Jun. 30, 2023

Jun. 30, 2022

Dec. 31, 2022

Termination date of stock repurchase program

Mar. 31, 2024

Mar. 31, 2023

Common stock issued under dividend reinvestment plan

7,961

15,285

18,394

29,778

Shares outstanding at end of period

9,537,236

^[1],[2]

9,599,856

^[1],[2]

9,537,236

^[1],[2]

9,599,856

^[1],[2]

9,581,536

Stock repurchases, value

$ 553,000

$ 792,000

$ 2,459,000

$ 545,000

$ 1,345,000

^[1]

$ 3,004,000

^[1]

4.875% Notes Due 2026

Interest Rate

4.875%

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

27,081

106,627

62,694

129,617

Stock repurchases, value

$ 552,000

$ 2,500,000

$ 1,300,000

$ 3,000,000.0

[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.

X

- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Number of shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity.

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Amount of stock repurchase plan authorized.

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Expiration date for the purchase of an entity's own shares under a stock repurchase plan, in the YYYY-MM-DD format.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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