XML 43 R31.htm IDEA: XBRL DOCUMENT v3.25.1

LEASES (Tables)

3 Months Ended

Mar. 31, 2025

Leases [Abstract]

Schedule of Leased Branch Properties

Leased branch properties as of March 31, 2025 and December 31, 2024 classified as operating leases consist of the following (in thousands):

						March 31, 2025						December 31, 2024
Operating lease right-of-use assets						$	5,446					$	5,648
Less: accumulated amortization						(194)						(772)
Less: lease termination						—						—
Add: lease modifications						80						570
Operating lease right-of-use-assets, net						$	5,332					$	5,446

Schedule of Undiscounted Cash Flows of the Operating Lease Liabilities

The following is a schedule by year of the undiscounted cash flows of the operating lease liabilities, excluding CAM charges, as of March 31, 2025 (in thousands):

Year						Amount
2025						$	720
2026						965
2027						977
2028						845
2029						827
2030 and thereafter						1,862
Total minimum lease payments						6,196
Less: amount representing interest						(680)
Present value of net minimum lease payments						$	5,516

Schedule of Leases in Premises and Equipment

The Corporation has included these leases in premises and equipment as of March 31, 2025 and December 31, 2024 as follows (in thousands):

						March 31, 2025						December 31, 2024
Buildings						$	6,507					$	6,507
Less: accumulated depreciation						(3,331)						(3,236)
Net book value						$	3,176					$	3,271

Schedule of Future Minimum Financial Lease Payments

The following is a schedule by year of future minimum lease payments under finance leases, together with the present value of net minimum lease payments as of March 31, 2025 (in thousands):

Year						Amount
2025						$	369
2026						502
2027						505
2028						505
2029						511
2030 and thereafter						2,436
Total minimum lease payments						4,828
Less: amount representing interest						(1,127)
Present value of net minimum lease payments						$	3,701

X

- Definition

Assets And Liabilities, Lessee [Table Text Block]

+ References

No definition available.

+ Details

Name:	chmg_AssetsAndLiabilitiesLesseeTableTextBlock
Namespace Prefix:	chmg_
Data Type:	dtr-types1:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

+ Details

Name:	us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_LeasesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

+ Details

Name:	us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-SubTopic 10
-Topic 360
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration