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EMPLOYEE RETIREMENT PLANS AND POSTRETIREMENT BENEFITS - Fair Value of Plan Assets by Category (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan Assets	$ 18,521	$ 17,293	$ 14,903
Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan Assets	16,889	15,189
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan Assets	984	1,109
Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan Assets	648	995
Multi-asset Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan Assets		5,149
Multi-asset Fund [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan Assets		5,149
Defined Growth Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan Assets	$ 12,249	5,134
Investment percentage within Plan Asset category	66.10%
Defined Growth Fund [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan Assets	$ 12,249	5,134
Corporate Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan Assets	$ 4,640	4,906
Investment percentage within Plan Asset category	25.10%
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan Assets	$ 4,640	4,906
Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan Assets	$ 984	1,109
Investment percentage within Plan Asset category	5.30%
Insurance Contract [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan Assets	$ 984	1,109
Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan Assets	648	995
Cash [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan Assets	$ 648	$ 995

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Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Percentage of investment to total investment within defined benefit plan asset category.

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