PENSION AND OTHER POSTRETIREMENT PLANS - Schedule of Fair Values of Pension Plan and Postretirement Plan Assets by Asset Category (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	$ 1,835	$ 1,820
Pension Benefits | Equity securities - US large cap common stocks
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	763	718
Pension Benefits | Equity securities - US mid cap stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	44	43
Pension Benefits | Equity securities - US small cap stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	135	131
Pension Benefits | Equity securities - international stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	143	158
Pension Benefits | Equity securities - emerging markets stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	68	34
Pension Benefits | Debt securities - intermediate term bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	373	232
Pension Benefits | Debt securities - short term bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	153	484
Pension Benefits | Debt securities - high yield bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	18
Pension Benefits | Debt securities - nontraditional bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	12
Pension Benefits | Debt securities - bank loan mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	35
Pension Benefits | Debt securities - preferred stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	36
Pension Benefits | Cash - money market account
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	55	20
SERP Benefits
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	546	606
SERP Benefits | Equity securities - US large cap common stocks
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	236	249
SERP Benefits | Equity securities - US mid cap stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	42	16
SERP Benefits | Equity securities - US small cap stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	13	43
SERP Benefits | Equity securities - international stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	45	57
SERP Benefits | Equity securities - emerging markets stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	20	12
SERP Benefits | Debt securities - intermediate term bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	107	63
SERP Benefits | Debt securities - short term bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	44	149
SERP Benefits | Debt securities - high yield bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	5
SERP Benefits | Debt securities - nontraditional bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	4
SERP Benefits | Debt securities - bank loan mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	10
SERP Benefits | Debt securities - preferred stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	10
SERP Benefits | Cash - money market account
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	10	17
Level 1 | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	1,835	1,820
Level 1 | Pension Benefits | Equity securities - US large cap common stocks
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	763	718
Level 1 | Pension Benefits | Equity securities - US mid cap stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	44	43
Level 1 | Pension Benefits | Equity securities - US small cap stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	135	131
Level 1 | Pension Benefits | Equity securities - international stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	143	158
Level 1 | Pension Benefits | Equity securities - emerging markets stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	68	34
Level 1 | Pension Benefits | Debt securities - intermediate term bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	373	232
Level 1 | Pension Benefits | Debt securities - short term bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	153	484
Level 1 | Pension Benefits | Debt securities - high yield bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	18
Level 1 | Pension Benefits | Debt securities - nontraditional bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	12
Level 1 | Pension Benefits | Debt securities - bank loan mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	35
Level 1 | Pension Benefits | Debt securities - preferred stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	36
Level 1 | Pension Benefits | Cash - money market account
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	55	20
Level 1 | SERP Benefits
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	546	606
Level 1 | SERP Benefits | Equity securities - US large cap common stocks
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	236	249
Level 1 | SERP Benefits | Equity securities - US mid cap stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	42	16
Level 1 | SERP Benefits | Equity securities - US small cap stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	13	43
Level 1 | SERP Benefits | Equity securities - international stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	45	57
Level 1 | SERP Benefits | Equity securities - emerging markets stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	20	12
Level 1 | SERP Benefits | Debt securities - intermediate term bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	107	63
Level 1 | SERP Benefits | Debt securities - short term bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	44	149
Level 1 | SERP Benefits | Debt securities - high yield bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	5
Level 1 | SERP Benefits | Debt securities - nontraditional bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	4
Level 1 | SERP Benefits | Debt securities - bank loan mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	10
Level 1 | SERP Benefits | Debt securities - preferred stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	10
Level 1 | SERP Benefits | Cash - money market account
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	10	17
Level 2 | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | Pension Benefits | Equity securities - US large cap common stocks
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | Pension Benefits | Equity securities - US mid cap stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | Pension Benefits | Equity securities - US small cap stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | Pension Benefits | Equity securities - international stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | Pension Benefits | Equity securities - emerging markets stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | Pension Benefits | Debt securities - intermediate term bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | Pension Benefits | Debt securities - short term bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | Pension Benefits | Debt securities - high yield bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0
Level 2 | Pension Benefits | Debt securities - nontraditional bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0
Level 2 | Pension Benefits | Debt securities - bank loan mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0
Level 2 | Pension Benefits | Debt securities - preferred stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0
Level 2 | Pension Benefits | Cash - money market account
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | SERP Benefits
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | SERP Benefits | Equity securities - US large cap common stocks
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | SERP Benefits | Equity securities - US mid cap stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | SERP Benefits | Equity securities - US small cap stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | SERP Benefits | Equity securities - international stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | SERP Benefits | Equity securities - emerging markets stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | SERP Benefits | Debt securities - intermediate term bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | SERP Benefits | Debt securities - short term bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 2 | SERP Benefits | Debt securities - high yield bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0
Level 2 | SERP Benefits | Debt securities - nontraditional bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0
Level 2 | SERP Benefits | Debt securities - bank loan mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0
Level 2 | SERP Benefits | Debt securities - preferred stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0
Level 2 | SERP Benefits | Cash - money market account
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | Pension Benefits | Equity securities - US large cap common stocks
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | Pension Benefits | Equity securities - US mid cap stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | Pension Benefits | Equity securities - US small cap stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | Pension Benefits | Equity securities - international stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | Pension Benefits | Equity securities - emerging markets stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | Pension Benefits | Debt securities - intermediate term bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | Pension Benefits | Debt securities - short term bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | Pension Benefits | Debt securities - high yield bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0
Level 3 | Pension Benefits | Debt securities - nontraditional bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0
Level 3 | Pension Benefits | Debt securities - bank loan mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0
Level 3 | Pension Benefits | Debt securities - preferred stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0
Level 3 | Pension Benefits | Cash - money market account
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | SERP Benefits
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | SERP Benefits | Equity securities - US large cap common stocks
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | SERP Benefits | Equity securities - US mid cap stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | SERP Benefits | Equity securities - US small cap stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | SERP Benefits | Equity securities - international stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | SERP Benefits | Equity securities - emerging markets stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | SERP Benefits | Debt securities - intermediate term bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | SERP Benefits | Debt securities - short term bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0	0
Level 3 | SERP Benefits | Debt securities - high yield bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0
Level 3 | SERP Benefits | Debt securities - nontraditional bond mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0
Level 3 | SERP Benefits | Debt securities - bank loan mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0
Level 3 | SERP Benefits | Debt securities - preferred stock mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	0
Level 3 | SERP Benefits | Cash - money market account
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets	$ 0	$ 0