EMPLOYEE AND POSTRETIREMENT BENEFIT PLANS - Items Included in Accumulated Other Comprehensive Income (Details) - USD ($)	1 Months Ended	12 Months Ended
	Jan. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension Plan
EMPLOYEE AND POSTRETIREMENT BENEFIT PLANS
Prior service cost			$ 0	$ 0
Net actuarial loss (gain)			139,000	179,000
Total			139,000	179,000
Amortization of net actuarial loss in 2024			6,000
Accumulated benefit obligation			896,000	946,000
Other Postretirement Benefits Plan
EMPLOYEE AND POSTRETIREMENT BENEFIT PLANS
Prior service cost			(124,000)	(155,000)
Net actuarial loss (gain)			(573,000)	(646,000)
Total			(697,000)	$ (801,000)
Amortization of net actuarial loss in 2024			$ 77,000
Adjustment in urecognized prior service cost	$ 413,000
Other Postretirement Benefits Plan | Forecast
EMPLOYEE AND POSTRETIREMENT BENEFIT PLANS
Prior service cost		$ 481,000
Curtailment adjustment		$ 469,000