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Regulatory Matters (Regulatory Capital Levels) (Details) $ in Thousands | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
--- | --- | ---
SmartFinancial, Inc. [Member] |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Total Capital (to Risk-Weighted Assets), Actual Amount | $ 470,635 | $ 448,050
Tier 1 Capital (to Risk-Weighted Assets), Actual Amount | 413,616 | 385,795
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Amount | 413,616 | 385,795
Tier 1 Capital (to Average Assets), Actual Amount | $ 413,616 | $ 385,795
Total Capital (to Risk-Weighted Assets), Actual Ratio (as a percent) | 0.111 | 0.118
Tier 1 Capital (to Risk-Weighted Assets), Actual Ratio (as a percent) | 0.0976 | 0.1016
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Ration (as percent) | 0.0976 | 0.1016
Tier 1 Capital (to Average Assets), Actual Ratio (as a percent) | 0.0829 | 0.0827
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount | $ 339,044 | $ 303,658
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount | 254,283 | 227,744
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount | 190,712 | 170,808
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Amount | $ 199,585 | $ 186,672
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio (as a percent) | 0.08 | 0.08
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio (as a percent) | 0.06 | 0.06
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio (as a percent) | 0.045 | 0.045
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Ratio (as a percent) | 0.04 | 0.04
Smart Bank [Member] |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Total Capital (to Risk-Weighted Assets), Actual Amount | $ 478,368 | $ 456,134
Tier 1 Capital (to Risk-Weighted Assets), Actual Amount | 445,159 | 427,559
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Amount | 445,159 | 427,559
Tier 1 Capital (to Average Assets), Actual Amount | $ 445,159 | $ 427,559
Total Capital (to Risk-Weighted Assets), Actual Ratio (as a percent) | 0.113 | 0.1202
Tier 1 Capital (to Risk-Weighted Assets), Actual Ratio (as a percent) | 0.1051 | 0.1126
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Ration (as percent) | 0.1051 | 0.1126
Tier 1 Capital (to Average Assets), Actual Ratio (as a percent) | 0.0894 | 0.0918
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount | $ 338,774 | $ 303,680
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount | 254,080 | 227,760
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount | 190,560 | 170,820
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Amount | $ 199,214 | $ 186,363
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio (as a percent) | 0.08 | 0.08
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio (as a percent) | 0.06 | 0.06
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio (as a percent) | 0.045 | 0.045
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Ratio (as a percent) | 0.04 | 0.04
Total Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount | $ 423,467 | $ 379,600
Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount | 338,774 | 303,680
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount | 275,253 | 246,740
Tier 1 Capital (to Average Assets), Minimum to be well capitalized under prompt corrective action provisions Amount | $ 249,017 | $ 232,954
Total Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio (as a percent) | 0.10 | 0.10
Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio (as a percent) | 0.08 | 0.08
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio (as a percent) | 0.065 | 0.065
Tier 1 Capital (to Average Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio (as a percent) | 0.05 | 0.05

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