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STOCK OPTION ROLLFORWARD (Details 5) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Stock Option Awards, Outstanding (in shares): |  |  |  |
Granted |  | 0 |  | 0
Stock Option Awards, Nonvested (in shares) |  |  |  |
Granted |  | 0 |  | 0
Stock options [Member] |  |  |  |
Stock Option Awards, Outstanding (in shares): |  |  |  |
Balance outstanding at beginning of period |  | 28,500 |  |
Granted |  | 0 |  |
Exercised |  | (8,500) |  |
Balance outstanding at end of period |  | 20,000 | [1] | 28,500
Weighted Average Exercise Price, Outstanding (in usd per share): |  |  |  |
Balance outstanding at beginning of period |  | $ 47.61 |  |
Granted |  | 0 |  |
Exercised |  | 27.46 |  |
Balance outstanding at end of period |  | $ 56.18 |  | $ 47.61
Balance at December 31, 2020, Weighted average remaining contractual term (years) |  | 4 years 7 months 17 days |  |
Balance at December 31, 2020, Aggregate Intrinsic Value | [2] | $ 509 |  |
Stock Option Awards, Nonvested (in shares) |  |  |  |
Granted |  | 0 |  |
[1] | vested stock options outstanding to Directors.
[2] | The aggregate intrinsic value represents the total pre-tax intrinsic value, based on the average of the high price and low price at which the Company’s common stock traded on December 31, 2021 of $81.65, which would have been received by in-the-money option holders had they all exercised their options as of that date.

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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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