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Capital Ratios (Schedule Of The Total Risk-based, Tier 1 Risk-based And Tier 1 Leverage Requirements) (Details) | Sep. 30, 2019 | Dec. 31, 2018
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |  |
Total Risk-based Capital Ratio: Ratio |  | 15.80% |  |
Franklin Financial Services Corporation 2 [Member] |  |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |  |
Common Equity Tier 1 Risk-based Capital Ratio: Ratio | [1] | 14.53% |  | 13.96%
Tier 1 Risk-based Capital Ratio: Ratio | [2] | 14.53% |  | 13.96%
Total Risk-based Capital Ratio: Ratio | [3] | 15.80% |  | 15.21%
Tier 1 Leverage Ratio: Ratio | [4] | 9.45% |  | 9.78%
Farmers & Merchants Trust Company [Member] |  |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |  |
Common Equity Tier 1 Risk-based Capital Ratio: Ratio | [1] | 14.27% |  | 13.80%
Common Equity Tier 1 Risk-based Capital Ratio: Adequately Capitalized Minimum: Ratio | [1] | 4.50% |  |
Common Equity Tier 1 Risk-based Capital Ratio: Well Capitalized Minimum: Ratio | [1] | 6.50% |  |
Tier 1 Risk-based Capital Ratio: Ratio | [2] | 14.27% |  | 13.80%
Tier 1 Risk-based Capital Ratio: Adequately Capitalized Minimum: Ratio | [2] | 6.00% |  |
Tier 1 Risk-based Capital Ratio: Well Capitalized Minimum: Ratio |  | 8.00% | [2] | 6.00%
Total Risk-based Capital Ratio: Ratio | [3] | 15.52% |  | 15.06%
Total Risk-based Capital Ratio: Adequately Capitalized Minimum: Ratio | [3] | 8.00% |  |
Total Risk-based Capital Ratio: Well Capitalized Minimum: Ratio | [3] | 10.00% |  |
Tier 1 Leverage Ratio: Ratio | [4] | 9.28% |  | 9.68%
Tier 1 Leverage Ratio: Adequately Capitalized Minimum: Ratio | [4] | 4.00% |  |
Tier 1 Leverage Ratio: Well Capitalized Minimum: Ratio | [4] | 5.00% |  |
[1] | Common equity Tier 1 capital/ total risk-weighted assets
[2] | Tier 1 capital / total risk-weighted assets
[3] | Total risk-based capital / total risk-weighted assets
[4] | Tier 1 capital / average quarterly assets

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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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- Definition The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations. + References Reference 1: 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 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 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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