EMPLOYEE BENEFIT PLANS - Components of net periodic cost (benefit) (Details) - Retirement Income Plan - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
EMPLOYEE BENEFIT PLANS
Interest cost	$ 33	$ 37
Expected return on plan assets		(72)
Amortization of net losses	28	18
Net periodic (benefit) cost	$ 61	$ (17)

Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.

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- Definition

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.

+ References

No definition available.

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- Definition

Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.

+ References

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- Definition

Amount of cost recognized for passage of time related to defined benefit plan.

+ References

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- Definition

Amount of net periodic benefit cost (credit) for defined benefit plan.

+ References

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