Retirement Benefit Plans (Details)	12 Months Ended
Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Interest credit under cash balance plan	0.030
Employer matching contribution, percent of match, maximum	5.00%
Defined benefit plan, service cost and interest cost		$ 3,300,000
Defined benefit plan, unamortized net loss		$ 7,200,000
Defined benefit plan, benefit obligation from lump sum payment to total benefit obligation ratio		8.06%
Defined benefit plan, net periodic benefit cost, loss due to settlement		$ 577,000
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	$ 59,199,000	54,300,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	54,300,000
Fair Value of Plan Assets, End of Period	$ 59,199,000	54,300,000
Net Periodic Benefit Cost
Settlement Cost		$ 577,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Operating Expense	Other Operating Expense	Other Operating Expense
Fair Value of Plan Assets	$ 59,199,000	$ 54,300,000
Percent of Total	100.00%	100.00%
Expected Future Benefit Payments
Health Care Cost Trend Rate Assumed for Next Year	7.75%	7.75%
Rate to which the Cost Trend Rate is Assumed to Decline (the Ultimate Trend Rate)	4.04%	4.04%
Year that the Rate Reaches the Ultimate Trend Rate	2075	2075
Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	$ 59,199,000	$ 54,300,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	54,300,000
Fair Value of Plan Assets, End of Period	59,199,000	54,300,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	59,199,000	54,300,000
Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Cash
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	$ 0	$ 0
Percent of Total	0.00%	0.00%
Cash \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	$ 0	$ 0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Cash \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Cash \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Interest-Bearing Money Market Fund
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	1,257,000	1,291,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	1,291,000
Fair Value of Plan Assets, End of Period	1,257,000	1,291,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	$ 1,257,000	$ 1,291,000
Percent of Total	2.10%	2.40%
Interest-Bearing Money Market Fund \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	$ 1,257,000	$ 1,291,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	1,291,000
Fair Value of Plan Assets, End of Period	1,257,000	1,291,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	1,257,000	1,291,000
Interest-Bearing Money Market Fund \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Interest-Bearing Money Market Fund \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Common Stock
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	5,443,000	6,411,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	6,411,000
Fair Value of Plan Assets, End of Period	5,443,000	6,411,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	$ 5,443,000	$ 6,411,000
Percent of Total	9.20%	11.80%
Common Stock \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	$ 5,443,000	$ 6,411,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	6,411,000
Fair Value of Plan Assets, End of Period	5,443,000	6,411,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	5,443,000	6,411,000
Common Stock \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Common Stock \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
North Country Funds - Equity
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	20,012,000	20,714,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	20,714,000
Fair Value of Plan Assets, End of Period	20,012,000	20,714,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	$ 20,012,000	$ 20,714,000
Percent of Total	33.80%	38.20%
North Country Funds - Equity \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	$ 20,012,000	$ 20,714,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	20,714,000
Fair Value of Plan Assets, End of Period	20,012,000	20,714,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	20,012,000	20,714,000
North Country Funds - Equity \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
North Country Funds - Equity \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Other Mutual Funds - Equity
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	19,883,000	15,059,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	15,059,000
Fair Value of Plan Assets, End of Period	19,883,000	15,059,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	$ 19,883,000	$ 15,059,000
Percent of Total	33.60%	27.70%
Other Mutual Funds - Equity \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	$ 19,883,000	$ 15,059,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	15,059,000
Fair Value of Plan Assets, End of Period	19,883,000	15,059,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	19,883,000	15,059,000
Other Mutual Funds - Equity \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Other Mutual Funds - Equity \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Equity Funds
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	39,895,000	35,773,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	35,773,000
Fair Value of Plan Assets, End of Period	39,895,000	35,773,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	$ 39,895,000	$ 35,773,000
Percent of Total	67.40%	65.90%
Equity Funds \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	$ 39,895,000	$ 35,773,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	35,773,000
Fair Value of Plan Assets, End of Period	39,895,000	35,773,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	39,895,000	35,773,000
Equity Funds \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Equity Funds \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
North Country Funds - Fixed Income
Defined Benefit Plan Funded Status
Fair Value of Plan Assets		0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period		0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		$ 0
Percent of Total		0.00%
North Country Funds - Fixed Income \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets		$ 0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period		0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		0
North Country Funds - Fixed Income \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets		0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period		0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		0
North Country Funds - Fixed Income \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets		0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period		0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		0
Other Mutual Funds - Fixed Income
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	12,012,000	6,094,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	6,094,000
Fair Value of Plan Assets, End of Period	12,012,000	6,094,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	$ 12,012,000	$ 6,094,000
Percent of Total	20.30%	11.20%
Other Mutual Funds - Fixed Income \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	$ 12,012,000	$ 6,094,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	6,094,000
Fair Value of Plan Assets, End of Period	12,012,000	6,094,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	12,012,000	6,094,000
Other Mutual Funds - Fixed Income \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Other Mutual Funds - Fixed Income \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Fixed Income Funds
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	12,012,000	6,094,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	6,094,000
Fair Value of Plan Assets, End of Period	12,012,000	6,094,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	$ 12,012,000	$ 6,094,000
Percent of Total	20.30%	11.20%
Fixed Income Funds \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	$ 12,012,000	$ 6,094,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	6,094,000
Fair Value of Plan Assets, End of Period	12,012,000	6,094,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	12,012,000	6,094,000
Fixed Income Funds \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Fixed Income Funds \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Alternative ETF
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	592,000	4,731,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	4,731,000
Fair Value of Plan Assets, End of Period	592,000	4,731,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	$ 592,000	$ 4,731,000
Percent of Total	1.00%	8.70%
Alternative ETF \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	$ 592,000	$ 4,731,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	4,731,000
Fair Value of Plan Assets, End of Period	592,000	4,731,000
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	592,000	4,731,000
Alternative ETF \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	0	0
Alternative ETF \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0
Fair Value of Plan Assets, End of Period	0	0
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets	$ 0	0
Employees' Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Assumptions used calculating benefit obligation, interest rate to annuitize cash balance account	5.50%
Defined benefit plan, increase in benefit payable, percent	3.00%
Defined benefit plan, benefit obligation, increase (decrease) for plan amendment	$ 351,638
Defined benefit plan, amortization of service cost	9 years 8 months 12 days
Defined benefit plan, net periodic benefit cost, loss due to settlement		577,000
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	$ 59,199,000	54,300,000	$ 68,925,000
Benefit Obligation	42,914,000	39,528,000	45,659,000
Funded Status of Plan	16,285,000	14,772,000
Change in Benefit Obligation
Benefit Obligation, Beginning of Period	39,528,000	45,659,000
Service Cost	1,593,000	1,877,000	1,934,000
Interest Cost	2,099,000	1,439,000	1,365,000
Plan Participants' Contributions	0	0
Amendments / Curtailments / Special Termination	526,000
Actuarial Gain (Loss)	2,125,000	(4,555,000)
Benefits Paid	(2,957,000)	(4,892,000)
Benefit Obligation, End of Period	42,914,000	39,528,000	45,659,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	54,300,000	68,925,000
Actual Return on Plan Assets	7,856,000	(9,733,000)
Employer Contributions	0	0
Plan Participants' Contributions	0	0
Benefits Paid	(2,957,000)	(4,892,000)
Fair Value of Plan Assets, End of Period	59,199,000	54,300,000	68,925,000
Accumulated Benefit Obligation at December 31, 2023	42,900,000
Amounts Recognized in the Consolidated Balance Sheets
Prepaid Pension Asset	16,285,000	14,772,000
Accrued Benefit Liability	0	0
Net Benefit (Expense) Recognized	16,285,000	14,772,000
Amounts Recognized in Other Comprehensive Income (Loss)
Net Unamortized (Gain) Loss Arising During the Period	(2,315,000)	9,492,000	(7,826,000)
Prior Service Cost	526,000
Amortization of Net (Loss) Gain	(118,000)	0	0
Amortization of Prior Service Cost	(62,000)	(78,000)	(78,000)
Settlement Cost		(577,000)
Total Other Comprehensive (Loss) Income for Pension and Other Postretirement Benefit Plans	(1,969,000)	8,837,000	(7,904,000)
Accumulated Other Comprehensive Income
Net Actuarial Loss (Gain)	4,141,000	6,574,000
Prior Service Cost	840,000	376,000
Total Accumulated Other Comprehensive Income (Loss), Before Tax	4,981,000	6,950,000
Net Periodic Benefit Cost
Service Cost	1,593,000	1,877,000	1,934,000
Interest Cost	2,099,000	1,439,000	1,365,000
Expected Return on Plan Assets	(3,416,000)	(4,314,000)	(3,780,000)
Amortization of Prior Service Cost	62,000	77,000	78,000
Amortization of Net Loss (Gain)	118,000	0	0
Settlement Cost		577,000
Net Periodic Benefit Cost	$ 456,000	$ (344,000)	$ (403,000)
Weighted-Average Assumptions Used in Calculating Benefit Obligation
Discount Rate	5.52%	5.59%
Rate of Compensation Increase	4.00%	3.50%
Interest Rate Credit for Determining Projected Cash Balance Account	4.66%	3.99%
Interest Rate Credit for Determining Projected Cash Balance Account, Segment One	5.50%
Interest Rate Credit for Determining Projected Cash Balance Account, Segment Two	5.76%
Interest Rate Credit for Determining Projected Cash Balance Account, Segment Three	5.83%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment One	5.50%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment Two	5.76%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment Three	5.83%
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Discount Rate	5.59%	3.30%	3.14%
Expected Long-Term Return on Plan Assets	6.50%	6.50%	6.50%
Rate of Compensation Increase	3.50%	3.50%	3.50%
Interest Rate Credit for Determining Projected Cash Balance Account	3.99%	3.00%	3.00%
Interest Rate to Annuitize Cash Balance Account, Segment One	5.50%	5.09%	1.02%
Interest Rate to Annuitize Cash Balance Account, Segment Two	5.76%	5.60%	2.72%
Interest Rate to Annuitize Cash Balance Account, Segment Three	5.83%	5.41%	3.08%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment One	5.50%	5.09%	1.02%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment Two	5.76%	5.60%	2.72%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment Three	5.83%	5.41%	3.08%
Fair Value of Plan Assets	$ 59,199,000	$ 54,300,000	$ 68,925,000
Expected Future Benefit Payments
2024	3,739,000
2025	3,468,000
2026	3,262,000
2027	3,330,000
2028	3,336,000
2029 - 2033	16,545,000
Estimated Contributions During 2024	$ 0
Select Executive Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Assumptions used calculating benefit obligation, interest rate to annuitize cash balance account	5.76%
Defined benefit plan, amortization of service cost	12 years 6 months
Defined benefit plan, benefit obligation, period increase (decrease)	$ 122,797
Defined benefit plan, net periodic benefit cost, loss due to settlement		0
Defined Benefit Plan Funded Status
Fair Value of Plan Assets	0	0	0
Benefit Obligation	6,904,000	6,070,000	6,455,000
Funded Status of Plan	(6,904,000)	(6,070,000)
Change in Benefit Obligation
Benefit Obligation, Beginning of Period	6,070,000	6,455,000
Service Cost	570,000	835,000	582,000
Interest Cost	336,000	225,000	191,000
Plan Participants' Contributions	0	0
Amendments / Curtailments / Special Termination	0
Actuarial Gain (Loss)	357,000	(983,000)
Benefits Paid	(429,000)	(462,000)
Benefit Obligation, End of Period	6,904,000	6,070,000	6,455,000
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period	0	0
Actual Return on Plan Assets	0	0
Employer Contributions	429,000	462,000
Plan Participants' Contributions	0	0
Benefits Paid	(429,000)	(462,000)
Fair Value of Plan Assets, End of Period	0	0	0
Accumulated Benefit Obligation at December 31, 2023	6,904,000
Amounts Recognized in the Consolidated Balance Sheets
Prepaid Pension Asset	0	0
Accrued Benefit Liability	(6,904,000)	(6,070,000)
Net Benefit (Expense) Recognized	(6,904,000)	(6,070,000)
Amounts Recognized in Other Comprehensive Income (Loss)
Net Unamortized (Gain) Loss Arising During the Period	358,000	(983,000)	332,000
Prior Service Cost	0
Amortization of Net (Loss) Gain	(73,000)	(212,000)	(178,000)
Amortization of Prior Service Cost	(39,000)	(44,000)	(48,000)
Settlement Cost		0
Total Other Comprehensive (Loss) Income for Pension and Other Postretirement Benefit Plans	246,000	(1,239,000)	106,000
Accumulated Other Comprehensive Income
Net Actuarial Loss (Gain)	1,739,000	1,453,000
Prior Service Cost	330,000	370,000
Total Accumulated Other Comprehensive Income (Loss), Before Tax	2,069,000	1,823,000

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