RETIREMENT PLANS - Amounts included in accumulated other comprehensive income (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
SERP and DRP
Defined Benefit Plan Disclosure [Line Items]
Unrecognized net actuarial loss (gain)	$ 1,073	$ 1,317
Unrecognized prior service cost	333	402
Total accumulated other comprehensive loss (gain)	1,406	1,719
Post Retirement
Defined Benefit Plan Disclosure [Line Items]
Unrecognized net actuarial loss (gain)	(189)	23
Unrecognized prior service cost	0	0
Total accumulated other comprehensive loss (gain)	$ (189)	$ 23

Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

+ References

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-Publisher FASB
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Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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