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EQUITY AWARDS - Summary of Restricted Stock Awards and Units Activity (Details) - Restricted Stock Awards And Units [Member] - $ / shares | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Number of Shares |  |
Outstanding at beginning of year (in shares) | 30,190 | 35,300
Effect of 10% stock dividend (in shares) |  | 3,530
Vested (in shares) | (4,070) | (4,840)
Balance (in shares) | 26,120 | 33,990
Weighted-Average Grant Date Fair Value |  |
Outstanding at beginning of year | $ 27.52 | $ 29.72
Vested | 27.50 | 30.25
Balance | $ 27.52 | $ 26.95

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- Definition Share based compensation arrangement by share based payment award non option equity instruments vested. + References No definition available. + Details
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- Definition Share-based compensation arrangement by share-based payment award, non-options, nonvested, weighted average grant date fair value. + References No definition available. + Details
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- Definition Number of equity instruments other than options outstanding, including both vested and non-vested instruments. + 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 (c)(1)(ii) -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) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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