v3.25.3

Leases (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2025
Leases [Abstract] |
Schedule of Assets and Liabilities, Lessee | The Company’s lease information is summarized as follows:
(in thousands) |  | September 30, 2025 |  | December 31, 2024
Lease Right of Use Asset: |  |  |  |
Lease asset |  | $ | 7,124 |  |  | $ | 6,821 |
Less: Accumulated amortization |  | (2,831) |  |  | (1,557) |
Net lease asset |  | $ | 4,293 |  |  | $ | 5,264 |
Lease Liability: |  |  |  |
Lease liability |  | $ | 7,457 |  |  | 7,154 |
Less: Accumulated amortization |  | (2,581) |  |  | (1,282) |
Net lease liability |  | $ | 4,876 |  |  | $ | 5,872 |
Schedule of Lessee, Operating Lease, Liability, Maturity | Future minimum payments for operating leases with initial or remaining terms of one year or more are as follows:
(in thousands) |  | September 30, 2025
Amounts due in: |  |
2025 |  | $ | 527 |
2026 |  | 1,951 |
2027 |  | 733 |
2028 |  | 559 |
2029 |  | 534 |
2030 and thereafter |  | 1,188 |
Total future lease payments |  | 5,492 |
Discount of cash flows |  | (616) |
Present value of net future lease payments |  | $ | 4,876 |

X
- Definition Assets And Liabilities, Lessee [Table Text Block] + References No definition available. + Details
Name: | cbnk_AssetsAndLiabilitiesLesseeTableTextBlock
Namespace Prefix: | cbnk_
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