Retirement Benefit Plans (Details) $ in Thousands		12 Months Ended
	Jan. 01, 2021 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2020 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
Defined benefit plan, unamortized net loss				$ 7,200
Defined benefit plan, benefit obligation from lump sum payment to total benefit obligation ratio (in percent)				8.06%
Defined benefit plan, net periodic benefit cost, loss due to settlement				$ 577
Defined Benefit Plan Funded Status
Fair Value of Plan Assets		$ 63,893	$ 59,199
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		59,199
Fair Value of Plan Assets, End of Period		$ 63,893	$ 59,199
Net Periodic Benefit Cost
Settlement Cost				$ 577
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		$ 63,893	$ 59,199
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		$ 63,893	$ 59,199
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		59,199
Fair Value of Plan Assets, End of Period		63,893	59,199
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		63,893	59,199
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
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period
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%
Cash | 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
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
Cash | 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
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
Cash | 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
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
Interest-Bearing Money Market Fund
Defined Benefit Plan Funded Status
Fair Value of Plan Assets		2,699	1,257
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		1,257
Fair Value of Plan Assets, End of Period		2,699	1,257
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		$ 2,699	$ 1,257
Percent of Total		4.20%	2.10%
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		$ 2,699	$ 1,257
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		1,257
Fair Value of Plan Assets, End of Period		2,699	1,257
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		2,699	1,257
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		5,593	5,443
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		5,443
Fair Value of Plan Assets, End of Period		5,593	5,443
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		$ 5,593	$ 5,443
Percent of Total		8.80%	9.20%
Common Stock | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets		$ 5,593	$ 5,443
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		5,443
Fair Value of Plan Assets, End of Period		5,593	5,443
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		5,593	5,443
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		18,740	20,012
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		20,012
Fair Value of Plan Assets, End of Period		18,740	20,012
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		$ 18,740	$ 20,012
Percent of Total		29.30%	33.80%
North Country Funds - Equity | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets		$ 18,740	$ 20,012
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		20,012
Fair Value of Plan Assets, End of Period		18,740	20,012
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		18,740	20,012
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		26,598	19,883
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		19,883
Fair Value of Plan Assets, End of Period		26,598	19,883
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		$ 26,598	$ 19,883
Percent of Total		41.60%	33.60%
Other Mutual Funds - Equity | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets		$ 26,598	$ 19,883
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		19,883
Fair Value of Plan Assets, End of Period		26,598	19,883
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		26,598	19,883
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		45,338	39,895
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		39,895
Fair Value of Plan Assets, End of Period		45,338	39,895
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		$ 45,338	$ 39,895
Percent of Total		70.90%	67.40%
Equity Funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets		$ 45,338	$ 39,895
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		39,895
Fair Value of Plan Assets, End of Period		45,338	39,895
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		45,338	39,895
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
Other Mutual Funds - Fixed Income
Defined Benefit Plan Funded Status
Fair Value of Plan Assets		10,263	12,012
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		12,012
Fair Value of Plan Assets, End of Period		10,263	12,012
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		$ 10,263	$ 12,012
Percent of Total		16.10%	20.30%
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		$ 10,263	$ 12,012
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		12,012
Fair Value of Plan Assets, End of Period		10,263	12,012
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		10,263	12,012
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		10,263	12,012
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		12,012
Fair Value of Plan Assets, End of Period		10,263	12,012
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		$ 10,263	$ 12,012
Percent of Total		16.10%	20.30%
Fixed Income Funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets		$ 10,263	$ 12,012
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		12,012
Fair Value of Plan Assets, End of Period		10,263	12,012
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets		10,263	12,012
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
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		592
Fair Value of Plan Assets, End of Period			592
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets			$ 592
Percent of Total			1.00%
Alternative ETF | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Funded Status
Fair Value of Plan Assets			$ 592
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		592
Fair Value of Plan Assets, End of Period			592
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Fair Value of Plan Assets			592
Alternative ETF | 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
Alternative ETF | 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
Employees' Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Assumptions used calculating benefit obligation, interest rate to annuitize cash balance account		4.66%
Defined benefit plan, increase in benefit payable (in percent)					3.00%
Defined benefit plan, benefit obligation, increase (decrease) for plan amendment			$ 526		$ 352
Defined benefit plan, amortization of service cost (in years)			7 years 7 months 20 days		9 years 8 months 12 days
Defined benefit plan, benefit obligation, period increase (decrease)			$ 526
Defined benefit plan, net periodic benefit cost, loss due to settlement				$ 577
Defined Benefit Plan Funded Status
Fair Value of Plan Assets		$ 63,893	59,199	54,300
Benefit Obligation		39,763	42,914	39,528
Funded Status of Plan		24,130	16,285
Change in Benefit Obligation
Benefit Obligation, Beginning of Period		42,914	39,528
Service Cost		1,692	1,593	1,877
Interest Cost		2,242	2,099	1,439
Plan Participants' Contributions		0	0
Amendments / Curtailments / Special Termination		441
Actuarial Gain (Loss)		(3,256)	2,125
Benefits Paid		(4,270)	(2,957)
Benefit Obligation, End of Period		39,763	42,914	39,528
Change in Fair Value of Plan Assets
Fair Value of Plan Assets, Beginning of Period		59,199	54,300
Actual Return on Plan Assets		8,964	7,856
Employer Contributions		0	0
Plan Participants' Contributions		0	0
Benefits Paid		(4,270)	(2,957)
Fair Value of Plan Assets, End of Period		63,893	59,199	54,300
Accumulated Benefit Obligation at December 31, 2024		39,763
Amounts Recognized in the Consolidated Balance Sheets
Prepaid Pension Asset		24,130	16,285
Accrued Benefit Liability		0	0
Net Benefit (Expense) Recognized		24,130	16,285
Amounts Recognized in Other Comprehensive (Loss) Income
Net Unamortized Gain Arising During the Period		(8,509)	(2,315)	9,492
Prior Service Cost		441	526
Amortization of Net (Loss) Gain		0	(118)	0
Amortization of Prior Service Cost		(131)	(62)	(78)
Settlement Cost				(577)
Total Other Comprehensive Loss for Pension and Other Postretirement Benefit Plans		(8,199)	(1,969)	8,837
Accumulated Other Comprehensive Income
Net Actuarial Loss (Gain)		(4,369)	4,141
Prior Service Cost		1,150	840
Total Accumulated Other Comprehensive (Loss) Income, Before Tax		(3,219)	4,981
Net Periodic Benefit Cost
Service Cost		1,692	1,593	1,877
Interest Cost		2,242	2,099	1,439
Expected Return on Plan Assets		(3,710)	(3,416)	(4,314)
Amortization of Prior Service Cost		131	62	77
Amortization of Net Loss (Gain)		0	118	0
Settlement Cost				577
Net Periodic Benefit Cost		$ 355	$ 456	$ (344)
Weighted-Average Assumptions Used in Calculating Benefit Obligation
Discount Rate		6.15%	5.52%
Rate of Compensation Increase		4.00%	4.00%
Interest Rate Credit for Determining Projected Cash Balance Account		4.54%	4.66%
Interest Rate Credit for Determining Projected Cash Balance Account, Segment One		4.66%
Interest Rate Credit for Determining Projected Cash Balance Account, Segment Two		5.25%
Interest Rate Credit for Determining Projected Cash Balance Account, Segment Three		5.57%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment One		4.66%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment Two		5.25%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment Three		5.57%
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Discount Rate		5.52%	5.59%	3.30%
Expected Long-Term Return on Plan Assets		6.50%	6.50%	6.50%
Rate of Compensation Increase		4.00%	3.50%	3.50%
Interest Rate Credit for Determining Projected Cash Balance Account		4.66%	3.99%	3.00%
Interest Rate to Annuitize Cash Balance Account, Segment One		4.66%	5.50%	5.09%
Interest Rate to Annuitize Cash Balance Account, Segment Two		5.25%	5.76%	5.60%
Interest Rate to Annuitize Cash Balance Account, Segment Three		5.57%	5.83%	5.41%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment One		4.66%	5.50%	5.09%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment Two		5.25%	5.76%	5.60%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment Three		5.57%	5.83%	5.41%
Fair Value of Plan Assets		$ 63,893	$ 59,199	$ 54,300
Expected Future Benefit Payments
2025		3,679
2026		3,037
2027		3,293
2028		3,294
2029		3,129
2030 - 2034		16,966
Estimated Contributions During 2025		$ 0
Select Executive Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Assumptions used calculating benefit obligation, interest rate to annuitize cash balance account		5.25%
Defined benefit plan, benefit obligation, increase (decrease) for plan amendment			0
Defined benefit plan, amortization of service cost (in years)	12 years 6 months	7 years 7 months 20 days
Defined benefit plan, benefit obligation, period increase (decrease)	$ 123	$ 441
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		4,940	6,904	6,070
Funded Status of Plan		(4,940)	(6,904)
Change in Benefit Obligation
Benefit Obligation, Beginning of Period		6,904	6,070
Service Cost		78	570	835
Interest Cost		320	336	225
Plan Participants' Contributions		0	0
Amendments / Curtailments / Special Termination		0
Actuarial Gain (Loss)		(1,770)	357
Benefits Paid		(592)	(429)
Benefit Obligation, End of Period		4,940	6,904	6,070
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		592	429
Plan Participants' Contributions		0	0
Benefits Paid		(592)	(429)
Fair Value of Plan Assets, End of Period		0	0	0
Accumulated Benefit Obligation at December 31, 2024		4,940
Amounts Recognized in the Consolidated Balance Sheets
Prepaid Pension Asset		0	0
Accrued Benefit Liability		(4,940)	(6,904)
Net Benefit (Expense) Recognized		(4,940)	(6,904)
Amounts Recognized in Other Comprehensive (Loss) Income
Net Unamortized Gain Arising During the Period		(1,770)	358	(983)
Prior Service Cost		0	0
Amortization of Net (Loss) Gain		(24)	(73)	(212)
Amortization of Prior Service Cost		(39)	(39)	(44)
Settlement Cost				0
Total Other Comprehensive Loss for Pension and Other Postretirement Benefit Plans		(1,833)	246	(1,239)
Accumulated Other Comprehensive Income
Net Actuarial Loss (Gain)		(55)	1,739
Prior Service Cost		291	330
Total Accumulated Other Comprehensive (Loss) Income, Before Tax		236	2,069
Net Periodic Benefit Cost
Service Cost		78	570	835
Interest Cost		320	336	225
Expected Return on Plan Assets		0	0	0
Amortization of Prior Service Cost		39	39	44
Amortization of Net Loss (Gain)		25	73	212
Settlement Cost				0
Net Periodic Benefit Cost		$ 462	$ 1,018	$ 1,316
Weighted-Average Assumptions Used in Calculating Benefit Obligation
Discount Rate		6.21%	5.53%
Rate of Compensation Increase		4.00%	4.00%
Interest Rate Credit for Determining Projected Cash Balance Account		4.54%	4.66%
Interest Rate Credit for Determining Projected Cash Balance Account, Segment One		4.66%
Interest Rate Credit for Determining Projected Cash Balance Account, Segment Two		5.25%
Interest Rate Credit for Determining Projected Cash Balance Account, Segment Three		5.57%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment One		4.66%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment Two		5.25%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment Three		5.57%
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Discount Rate		5.53%	5.61%	5.61%
Rate of Compensation Increase		4.00%	3.50%	3.50%
Interest Rate Credit for Determining Projected Cash Balance Account		4.66%	3.99%	3.99%
Interest Rate to Annuitize Cash Balance Account, Segment One		4.66%	5.50%	5.09%
Interest Rate to Annuitize Cash Balance Account, Segment Two		5.25%	5.76%	5.60%
Interest Rate to Annuitize Cash Balance Account, Segment Three		5.57%	5.83%	5.41%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment One		4.66%	5.50%	5.09%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment Two		5.25%	5.76%	5.60%
Interest Rate to Convert Annuities to Actuarially Equivalent Lump Sum Amounts, Segment Three		5.57%	5.76%	5.41%
Fair Value of Plan Assets		$ 0	$ 0	$ 0
Expected Future Benefit Payments
2025		579
2026		549
2027		531
2028		501
2029		471
2030 - 2034		1,992
Estimated Contributions During 2025		$ 579
Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Assumptions used calculating benefit obligation, interest rate to annuitize cash balance account		5.57%
Defined benefit plan, benefit obligation, increase (decrease) for plan amendment			0
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		5,550	6,221	6,482
Funded Status of Plan		(5,550)	(6,221)
Change in Benefit Obligation
Benefit Obligation, Beginning of Period		6,221	6,482
Service Cost		45	56	90
Interest Cost		320	332	248
Plan Participants' Contributions		483	459
Amendments / Curtailments / Special Termination		0
Actuarial Gain (Loss)		(497)	(397)
Benefits Paid		(1,022)	(711)
Benefit Obligation, End of Period		5,550	6,221	6,482
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		539	252
Plan Participants' Contributions		483	459
Benefits Paid		(1,022)	(711)
Fair Value of Plan Assets, End of Period		0	0	0
Accumulated Benefit Obligation at December 31, 2024		5,550
Amounts Recognized in the Consolidated Balance Sheets
Prepaid Pension Asset		0	0
Accrued Benefit Liability		(5,550)	(6,221)
Net Benefit (Expense) Recognized		(5,550)	(6,221)
Amounts Recognized in Other Comprehensive (Loss) Income
Net Unamortized Gain Arising During the Period		(498)	(397)	(1,571)
Prior Service Cost		0	0
Amortization of Net (Loss) Gain		337	353	156
Amortization of Prior Service Cost		(102)	(104)	(106)
Settlement Cost				0
Total Other Comprehensive Loss for Pension and Other Postretirement Benefit Plans		(263)	(148)	(1,521)
Accumulated Other Comprehensive Income
Net Actuarial Loss (Gain)		(2,801)	(2,641)
Prior Service Cost		160	262
Total Accumulated Other Comprehensive (Loss) Income, Before Tax		(2,641)	(2,379)
Net Periodic Benefit Cost
Service Cost		45	56	90
Interest Cost		320	332	248
Expected Return on Plan Assets		0	0	0
Amortization of Prior Service Cost		102	104	106
Amortization of Net Loss (Gain)		(337)	(353)	(156)
Settlement Cost				0
Net Periodic Benefit Cost		$ 130	$ 139	$ 288
Weighted-Average Assumptions Used in Calculating Benefit Obligation
Discount Rate		6.12%	5.51%
Rate of Compensation Increase		4.00%	4.00%
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Discount Rate		5.51%	5.62%	3.32%
Rate of Compensation Increase		4.00%	3.50%	3.50%
Fair Value of Plan Assets		$ 0	$ 0	$ 0
Expected Future Benefit Payments
2025		642
2026		657
2027		662
2028		628
2029		615
2030 - 2034		2,520
Estimated Contributions During 2025		$ 642
Minimum | Cash
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage		0.00%
Minimum | Interest-Bearing Money Market Fund
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage		0.00%	0.00%
Minimum | Common Stock
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage		0.00%	0.00%
Minimum | North Country Funds - Equity
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage
Minimum | Other Mutual Funds - Equity
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage
Minimum | Equity Funds
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage		55.00%	55.00%
Minimum | Other Mutual Funds - Fixed Income
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage
Minimum | Fixed Income Funds
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage		10.00%	10.00%
Minimum | Alternative ETF
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage			0.00%
Maximum | Cash
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage		15.00%
Maximum | Interest-Bearing Money Market Fund
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage		15.00%	15.00%
Maximum | Common Stock
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage		10.00%	10.00%
Maximum | North Country Funds - Equity
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage
Maximum | Other Mutual Funds - Equity
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage
Maximum | Equity Funds
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage		85.00%	85.00%
Maximum | Other Mutual Funds - Fixed Income
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage
Maximum | Fixed Income Funds
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage		30.00%	30.00%
Maximum | Alternative ETF
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost
Target Allocation, Percentage			20.00%
Subsequent to January 1, 2003
Defined Benefit Plan Disclosure [Line Items]
Service credits, percent of eligible salaries		6.00%
Prior to January 1, 2003 | Minimum
Defined Benefit Plan Disclosure [Line Items]
Service credits, percent of eligible salaries		6.00%
Prior to January 1, 2003 | Maximum
Defined Benefit Plan Disclosure [Line Items]
Service credits, percent of eligible salaries		12.00%