XML 55 R45.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Borrowings (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
Debt Disclosure [Abstract] |
Schedule of Bank Term Funding Program Advances | Bank Term Funding Program (“BTFP”) At December 31, loans from the BTFP were as follows:
(Dollars in thousands) |  | 2024 |  |  | 2023 |
Maturity of May 2024 with fixed interest rate of 4.71% |  | $ | - |  |  | $ | 160,000 |
Maturity of December 2024 with fixed interest rate of 4.83% |  |  | - |  |  |  | 10,000 |
Total advances outstanding at year-end |  | $ | - |  |  | $ | 170,000 |
Schedule of Federal Home Loan Bank Advances | At December 31, advances from the FHLB were as follows:
(Dollars in thousands) |  | 2024 |  |  | 2023 |
Maturity of January 2025 with fixed interest rate of 4.48% |  | $ | 135,000 |  |  | $ | - |
Maturity of July 2025 with fixed interest rate of 4.88% |  |  | 20,000 |  |  |  | 20,000 |
Maturity of January 2026 with fixed interest rate of 4.35% |  |  | 10,000 |  |  |  | - |
Maturity of December 2026 with fixed interest rate of 4.20% |  |  | 10,000 |  |  |  | 10,000 |
Total advances outstanding at year-end |  | $ | 175,000 |  |  | $ | 30,000 |

X
- Definition Schedule of bank term funding program , advances. + References No definition available. + Details
Name: | cofs_ScheduleOfBankTermFundingProgramAdvancesTableTextBlock
Namespace Prefix: | cofs_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of advance from Federal Home Loan Bank (FHLBank). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 470 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478878/942-470-45-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477734/942-470-50-3 + Details
Name: | us-gaap_ScheduleOfFederalHomeLoanBankAdvancesByBranchOfFHLBBankTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration