| Component: (Network and Table) | |
|---|---|
| Network | 41207 - Disclosure - Defined Benefit Pension Plan (Estimated Future Benefit Payments) (Details) (http://www.carrolltonbank.com/role/DisclosureDefinedBenefitPensionPlanEstimatedFutureBenefitPaymentsDetails) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0000859222 (http://www.sec.gov/CIK) |
| Defined Benefit Pension Plan [Abstract] | Period [Axis] |
|---|---|
2015-12-31 | |
Defined Benefit Pension Plan [Abstract] | |
2015 | |
2016 | |
2017 | |
2018 | |
2019 | |
2020 - 2023 |