LOANS AND ALLOWANCE FOR CREDIT LOSSES - Nonaccrual status (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Nonaccrual	$ 2,077	$ 660
Loans Past Due Over 89 Days Still Accruing	924	735
Residential real estate
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Nonaccrual	1,482	331
Loans Past Due Over 89 Days Still Accruing	909	660
Commercial real estate
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Nonaccrual	592	328
Consumer
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Nonaccrual	3	1
Loans Past Due Over 89 Days Still Accruing	$ 15	$ 75

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477657/942-210-S45-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478478/942-210-S50-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7)(e)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestNonaccrual
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant