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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands | Class A Common Stock Common Stock. | Class A Common Stock | Class B Common Stock Common Stock. | Class B Common Stock | Additional Paid-in Capital | Retained Earnings | Treasury Stock | Total
--- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2021 | $ 68 |  | $ 9 |  | $ 70,035 | $ 164,246 | $ (37,439) | $ 196,919 |
Balance, shares at Dec. 31, 2021 | 6,835 | 6,835 | 965 | 965 |  |  |  |  |
Net income | $ 0 |  | $ 0 |  | 0 | 1,204 | 0 | 1,204 |
Dividends declared per common share | 0 |  | 0 |  | 0 | (968) | 0 | (968) |
Compensation expense related to restricted stock awards | 0 |  | 0 |  | 339 | 0 | 0 | 339 |
401(k) plan contribution | 0 |  | 0 |  | (229) | 0 | 477 | 248 |
Balance at Mar. 31, 2022 | $ 68 |  | $ 9 |  | 70,145 | 164,482 | (36,962) | 197,742 |
Balance, shares at Mar. 31, 2022 | 6,835 |  | 965 |  |  |  |  |  |
Balance at Dec. 31, 2021 | $ 68 |  | $ 9 |  | 70,035 | 164,246 | (37,439) | 196,919 |
Balance, shares at Dec. 31, 2021 | 6,835 | 6,835 | 965 | 965 |  |  |  |  |
Net income |  |  |  |  |  |  |  | 5,027 |
Balance at Jun. 30, 2022 | $ 68 |  | $ 9 |  | 70,483 | 167,095 | (36,962) | 200,693 |
Balance, shares at Jun. 30, 2022 | 6,835 |  | 965 |  |  |  |  |  |
Balance at Mar. 31, 2022 | $ 68 |  | $ 9 |  | 70,145 | 164,482 | (36,962) | 197,742 |
Balance, shares at Mar. 31, 2022 | 6,835 |  | 965 |  |  |  |  |  |
Net income | $ 0 |  | $ 0 |  | 0 | 3,823 | 0 | 3,823 |
Dividends declared per common share | 0 |  | 0 |  | 0 | (1,210) | 0 | (1,210) |
Compensation expense related to restricted stock awards | 0 |  | 0 |  | 338 | 0 | 0 | 338 |
Purchase of shares held in treasury | 0 |  | 0 |  | 0 | 0 | 0 | 0 |
Balance at Jun. 30, 2022 | $ 68 |  | $ 9 |  | 70,483 | 167,095 | (36,962) | 200,693 |
Balance, shares at Jun. 30, 2022 | 6,835 |  | 965 |  |  |  |  |  |
Balance at Dec. 31, 2022 | $ 78 |  | $ 0 |  | 71,664 | 143,896 | (37,109) | 178,529 | [1]
Balance, shares at Dec. 31, 2022 | 7,867 | 7,867 | 0 | 0 |  |  |  |  |
Net income | $ 0 |  | $ 0 |  | 0 | 920 | 0 | 920 |
Dividends declared per common share | 0 |  | 0 |  | 0 | (1,531) | 0 | (1,531) |
Compensation expense related to restricted stock awards | 0 |  | 0 |  | 245 | 0 | 0 | 245 |
401(k) plan contribution | 0 |  | 0 |  | (185) | 0 | 441 | 256 |
Balance at Mar. 31, 2023 | $ 78 |  | $ 0 |  | 71,724 | 143,285 | (36,668) | 178,419 |
Balance, shares at Mar. 31, 2023 | 7,867 |  | 0 |  |  |  |  |  |
Balance at Dec. 31, 2022 | $ 78 |  | $ 0 |  | 71,664 | 143,896 | (37,109) | 178,529 | [1]
Balance, shares at Dec. 31, 2022 | 7,867 | 7,867 | 0 | 0 |  |  |  |  |
Net income |  |  |  |  |  |  |  | 4,270 |
Balance at Jun. 30, 2023 | $ 78 |  | $ 0 |  | 71,972 | 145,104 | (36,668) | 180,486 |
Balance, shares at Jun. 30, 2023 | 7,867 | 7,867 | 0 | 0 |  |  |  |  |
Balance at Mar. 31, 2023 | $ 78 |  | $ 0 |  | 71,724 | 143,285 | (36,668) | 178,419 |
Balance, shares at Mar. 31, 2023 | 7,867 |  | 0 |  |  |  |  |  |
Net income | $ 0 |  | $ 0 |  | 0 | 3,350 | 0 | 3,350 |
Forfeiture of restricted stock | $ 0 |  | $ 0 |  | 0 | 0 | 0 | 0 |
Forfeiture of restricted stock (in shares) | 0 |  | 0 |  |  |  |  |  |
Dividends declared per common share | $ 0 |  | $ 0 |  | 0 | (1,531) | 0 | (1,531) |
Compensation expense related to restricted stock awards | 0 |  | 0 |  | 248 | 0 | 0 | 248 |
Purchase of shares held in treasury | 0 |  | 0 |  | 0 | 0 | 0 | 0 |
Balance at Jun. 30, 2023 | $ 78 |  | $ 0 |  | $ 71,972 | $ 145,104 | $ (36,668) | $ 180,486 |
Balance, shares at Jun. 30, 2023 | 7,867 | 7,867 | 0 | 0 |  |  |  |  |
[1] | The balance sheet at December 31, 2022 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.

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- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481549/505-30-45-1 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration