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Regulatory Matters (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
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Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio | 8.00% |
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio | 6.00% |
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio | 4.50% |
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Ratio | 4.00% |
Total Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio | 10.00% |
Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio | 8.00% |
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio | 6.50% |
Tier 1 Capital (to Average Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio | 5.00% |
SmartFinancial, Inc. [Member] |  |
Total Capital (to Risk-Weighted Assets), Actual Amount | $ 99,616 |
Tier 1 Capital (to Risk-Weighted Assets), Actual Amount | 95,253 |
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Amount | 83,253 |
Tier 1 Capital (to Average Assets), Actual Amount | $ 95,253 |
Total Capital (to Risk-Weighted Assets), Actual Ratio | 12.32% |
Tier 1 Capital (to Risk-Weighted Assets), Actual Ratio | 11.78% |
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Ratio | 10.30% |
Tier 1 Capital (to Average Assets), Actual Ratio | 9.45% |
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount | $ 64,668 |
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount | 48,501 |
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount | 36,376 |
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Amount | $ 40,307 |
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio | 8.00% |
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio | 6.00% |
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio | 4.50% |
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Ratio | 4.00% |
Total Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount | $ 80,835 |
Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount | 64,668 |
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount | 52,543 |
Tier 1 Capital (to Average Assets), Minimum to be well capitalized under prompt corrective action provisions Amount | $ 50,383 |
Total Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio | 10.00% |
Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio | 8.00% |
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio | 6.50% |
Tier 1 Capital (to Average Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio | 5.00% |
Comerstone Community Bank [Member] |  |
Total Capital (to Risk-Weighted Assets), Actual Amount | $ 40,227 |
Tier 1 Capital (to Risk-Weighted Assets), Actual Amount | 39,717 |
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Amount | 39,717 |
Tier 1 Capital (to Average Assets), Actual Amount | $ 39,717 |
Total Capital (to Risk-Weighted Assets), Actual Ratio | 11.69% |
Tier 1 Capital (to Risk-Weighted Assets), Actual Ratio | 11.53% |
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Ratio | 11.53% |
Tier 1 Capital (to Average Assets), Actual Ratio | 9.05% |
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount | $ 27,559 |
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount | 20,669 |
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount | 15,502 |
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Amount | $ 17,550 |
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio | 8.00% |
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio | 6.00% |
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio | 4.50% |
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Ratio | 4.00% |
Total Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount | $ 34,449 |
Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount | 27,559 |
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount | 22,392 |
Tier 1 Capital (to Average Assets), Minimum to be well capitalized under prompt corrective action provisions Amount | $ 21,938 |
Total Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio | 10.00% |
Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio | 8.00% |
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio | 6.50% |
Tier 1 Capital (to Average Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio | 5.00% |
Smart Bank [Member] |  |
Total Capital (to Risk-Weighted Assets), Actual Amount | $ 60,349 | $ 59,088
Tier 1 Capital (to Risk-Weighted Assets), Actual Amount | 56,546 | 55,457
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Amount | 56,546 |
Tier 1 Capital (to Average Assets), Actual Amount | $ 56,546 | $ 55,457
Total Capital (to Risk-Weighted Assets), Actual Ratio | 13.03% | 14.73%
Tier 1 Capital (to Risk-Weighted Assets), Actual Ratio | 12.21% | 13.83%
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Ratio | 12.21% |
Tier 1 Capital (to Average Assets), Actual Ratio | 10.05% | 10.83%
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount | $ 37,057 | $ 32,085
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount | 27,793 | 16,042
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount | 20,845 |
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Amount | $ 22,501 | $ 20,475
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio | 8.00% | 8.00%
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio | 6.00% | 4.00%
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio | 4.50% |
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Ratio | 4.00% | 4.00%
Total Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount | $ 46,322 | $ 40,106
Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount | 37,057 | 24,064
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount | 30,109 |
Tier 1 Capital (to Average Assets), Minimum to be well capitalized under prompt corrective action provisions Amount | $ 28,126 | $ 25,594
Total Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio | 10.00% | 10.00%
Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio | 8.00% | 6.00%
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio | 6.50% |
Tier 1 Capital (to Average Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio | 5.00% | 5.00%

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- Definition The amount of Total Capital required to be categorized as well as capitalized under the regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 + 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958570-112826 + Details
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- Definition The amount of Tier 1 Leverage Capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 + Details
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- Definition The Tier 1 capital ratio (Tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 + Details
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