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Capital Ratios (Schedule Of The Total Risk-based, Tier 1 Risk-based And Tier 1 Leverage Requirements) (Details) | Mar. 31, 2020 | Dec. 31, 2019
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Total Risk-based Capital Ratio: Ratio | 15.78% |
Franklin Financial Services Corporation [Member] |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Common Equity Tier 1 Risk-based Capital Ratio: Ratio | 14.73% | 14.82%
Tier 1 Risk-based Capital Ratio: Ratio | 14.73% | 14.82%
Total Risk-based Capital Ratio: Ratio | 15.99% | 16.08%
Tier 1 Leverage Ratio: Ratio | 9.85% | 9.72%
Bank [Member] |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Common Equity Tier 1 Risk-based Capital Ratio: Ratio | 14.52% | 14.62%
Common Equity Tier 1 Risk-based Capital Ratio: Adequately Capitalized Minimum: Ratio | 4.50% |
Common Equity Tier 1 Risk-based Capital Ratio: Well Capitalized Minimum: Ratio | 6.50% |
Tier 1 Risk-based Capital Ratio: Ratio | 14.52% | 14.62%
Tier 1 Risk-based Capital Ratio: Adequately Capitalized Minimum: Ratio | 6.00% |
Tier 1 Risk-based Capital Ratio: Well Capitalized Minimum: Ratio | 8.00% |
Total Risk-based Capital Ratio: Ratio | 15.78% | 15.87%
Total Risk-based Capital Ratio: Adequately Capitalized Minimum: Ratio | 8.00% |
Total Risk-based Capital Ratio: Well Capitalized Minimum: Ratio | 10.00% |
Tier 1 Leverage Ratio: Ratio | 9.71% | 9.59%
Tier 1 Leverage Ratio: Adequately Capitalized Minimum: Ratio | 4.00% |
Tier 1 Leverage Ratio: Well Capitalized Minimum: Ratio | 5.00% |

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- Definition The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=117337116&loc=d3e65071-112826 + Details
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