v3.22.0.1

Stock-Based Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Share-based Payment Arrangement [Abstract] |
Schedule of Share-based Compensation, Stock Options, Activity | Information with respect to options outstanding during the years ended December 31, 2021 and 2020 is as follows:
|  | 2021 |  | 2020 |  |  |  |
|  | Shares |  | Weighted Average Exercise Price |  | Shares |  | Weighted Average Exercise Price |  |  |  |  |  |  |  |
Outstanding at beginning of year |  | 1,169,413 |  |  | $ | 12.21 |  |  | 1,308,047 |  |  | $ | 11.00 |  |  |  |  |  |  |  |  |
Add: Granted |  | 170,244 |  |  | 24.51 |  |  | 205,100 |  |  | 13.95 |  |  |  |  |  |  |  |  |
Less: Exercised |  | (186,461) |  |  | 9.61 |  |  | (142,901) |  |  | 7.72 |  |  |  |  |  |  |  |  |
Less: Retired on exercise |  | (54,192) |  |  | 9.41 |  |  | (137,334) |  |  | 7.90 |  |  |  |  |  |  |  |  |
Less: Expired/cancelled/forfeited |  | (38,981) |  |  | 7.43 |  |  | (63,499) |  |  | 11.60 |  |  |  |  |  |  |  |  |
Outstanding at end of year |  | 1,060,023 |  |  | $ | 14.77 |  |  | 1,169,413 |  |  | $ | 12.21 |  |  |  |  |  |  |  |  |
Exercisable at end of year |  | 551,804 |  |  | $ | 12.55 |  |  | 567,593 |  |  | $ | 11.13 |  |  |  |  |  |  |  |  |
Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable | A summary of information about stock options outstanding is as follows:
|  | Exercise Price Range |  | Weighted Average Exercise Price |  | Average Remaining Life (years) |  | Outstanding Shares |  | Exercisable Shares
December 31, 2021 |  |  |  |  |  |  |  |  |  |
|  | $10.70 - 14.63 |  | $ | 12.89 |  |  | 2.45 |  | 892,529 |  |  | 546,804 |
|  | 14.64 - 18.56 |  | 14.96 |  |  | 3.14 |  | 22,750 |  |  | 5,000 |
|  | 18.57 - 22.49 |  | 21.86 |  |  | 4.71 |  | 2,500 |  |  | — |
|  | 22.50 - 26.41 |  | 26.41 |  |  | 5.00 |  | 142,244 |  |  | — |
Total outstanding options |  |  |  | $ | 14.77 |  |  | 2.80 |  | 1,060,023 |  |  | 551,804 |
Intrinsic value on December 31, 2021 |  |  |  |  |  |  |  | $ | 12,143,007 |  |  | $ | 7,529,711 |
December 31, 2020 |  |  |  |  |  |  |  |  |  |
|  | $8.50 - 12.38 |  | $ | 11.03 |  |  | 2.25 |  | 740,513 |  |  | 508,379 |
|  | 12.39 - 14.38 |  | 13.86 |  |  | 4.89 |  | 189,100 |  |  | 3,500 |
|  | 14.39 - 14.89 |  | 14.57 |  |  | 4.00 |  | 239,800 |  |  | 55,714 |
Total outstanding options |  |  |  | $ | 12.21 |  |  | 3.00 |  | 1,169,413 |  |  | 567,593 |
Intrinsic value on December 31, 2020 |  |  |  |  |  |  |  | $ | 2,164,598 |  |  | $ | 1,620,892 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions | The weighted average fair value of options granted during 2021 and 2020 were estimated using the Black-Scholes option-pricing model with the following weighted average assumptions:
|  | 2021 |  | 2020 |  |  |  |  |  |
Dividend yield |  | 0.80% |  | 0.00% |  |  |  |  |  |
Risk free interest rate |  | 0.25% |  | 0.43% |  |  |  |  |  |
Expected volatility |  | 60.97% |  | 64.46% |  |  |  |  |  |
Expected life in years |  | 5 |  | 5 |  |  |  |  |  |
Schedule of Share-based Compensation, Restricted Stock Units Award Activity | Nonvested restricted stock for the years ended December 31, 2021 and 2020 is summarized in the following table.
|  | 2021 |  | 2020 |  |  |  |
|  | Shares |  | Weighted Average Grant-Date Fair Value |  | Shares |  | Weighted Average Grant-Date Fair Value |  |  |  |  |  |  |  |
Nonvested at beginning of year |  | 30,713 |  |  | $ | 13.46 |  |  | 19,500 |  |  | $ | 12.38 |  |  |  |  |  |  |  |  |
Add: Granted |  | 29,405 |  |  | 14.88 |  |  | 16,713 |  |  | 14.36 |  |  |  |  |  |  |  |  |
Less: Vested |  | (11,071) |  |  | 13.38 |  |  | (5,500) |  |  | 12.38 |  |  |  |  |  |  |  |  |
Less: Forfeited |  | — |  |  | — |  |  | — |  |  | — |  |  |  |  |  |  |  |  |
Nonvested at end of year |  | 49,047 |  |  | $ | 14.33 |  |  | 30,713 |  |  | $ | 13.46 |  |  |  |  |  |  |  |  |
Share Based Compensation, Restricted Stock, Vesting Schedule | The vesting schedule of restricted shares as of December 31, 2021 is as follows:
Year |  | Shares
2022 |  | 20,874 |
2023 |  | 18,374 |
2024 |  | 9,799 |
|  | 49,047 |

X
- Definition Share Based Compensation, Restricted Stock, Vesting Schedule [Table Text Block] + References No definition available. + Details
Name: | cbnk_ShareBasedCompensationRestrictedStockVestingScheduleTableTextBlock
Namespace Prefix: | cbnk_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
Name: | us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding and exercisable options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAndExercisableTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration