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v3.22.2.2

NET INCOME PER COMMON SHARE AND EQUITY PER COMMON SHARE (Details) - $ / shares | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2021
Shares used in computing basic and diluted net income per share [Abstract] |  |  |  |  |
Weighted average common shares outstanding during the period for Basic computation (in shares) | 9,477,000 | 9,404,000 | 9,451,000 | 9,389,000 |
Dilutive effect of employee stock options and awards (in shares) | 15,000 | 28,000 | 22,000 | 32,000 |
Weighted average common shares outstanding during the period for Diluted computation (in shares) | 9,492,000 | 9,432,000 | 9,473,000 | 9,421,000 |
Earnings Per Share [Abstract] |  |  |  |  |
Equity per common share (in dollars per share) | $ 0.65 | $ 0.54 | $ 1.66 | $ 1.47 |
Class A Stock [Member] |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Common stock, shares authorized (in shares) | 15,000,000 |  | 15,000,000 |  |
Common stock, shares issued (in shares) | 8,609,497 | 8,524,093 | 8,609,497 | 8,524,093 |
Common stock, shares outstanding (in shares) | 8,609,497 | 8,524,093 | 8,609,497 | 8,524,093 |
Common stock, par value (in dollars per share) | $ 1 |  | $ 1 |  |
Earnings Per Share [Abstract] |  |  |  |  |
Equity per common share (in dollars per share) |  |  | $ 19.88 |  | $ 18.94
Class B Stock [Member] |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Common stock, shares authorized (in shares) | 1,040,000 |  | 1,040,000 |  |
Common stock, shares issued (in shares) | 881,452 | 881,452 | 881,452 | 881,452 |
Common stock, shares outstanding (in shares) | 881,452 | 881,452 | 881,452 | 881,452 |
Common stock, par value (in dollars per share) | $ 1 |  | $ 1 |  |
Restricted Stock [Member] |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract] |  |  |  |  |
Shares excluded from calculations of diluted net income per share (in shares) | 0 | 0 | 0 | 0 |

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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