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Regulatory Matters (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
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Tier I capital (to average assets), Amount [Abstract] |  |
Actual Amount | $ 468,304 | $ 439,877
For Capital Adequacy Purposes | $ 151,066 | $ 146,139
Tier I capital (to average assets), Ratio [Abstract] |  |
Actual Ratio | 12.40% | 12.04%
For Capital Adequacy Purposes | 4.00% | 4.00%
Common equity Tier 1 capital (to risk weighted assets), Amount [Abstract] |  |
Actual Amount | $ 468,304 |
For Capital Adequacy Purposes | $ 144,538 |
Common equity Tier 1 capital (to risk weighted assets), Ratio [Abstract] |  |
Actual Ratio | 14.58% |
For Capital Adequacy Purposes | 4.50% |
Tier I capital (to risk weighted assets), Amount [Abstract] |  |
Actual Amount | $ 468,304 | $ 439,877
For Capital Adequacy Purposes | $ 168,253 | $ 106,572
Tier I capital (to risk weighted assets), Ratio [Abstract] |  |
Actual Ratio | 16.70% | 16.51%
For Capital Adequacy Purposes | 6.00% | 4.00%
Total capital (to risk weighted assets), Amount [Abstract] |  |
Actual Amount | $ 503,296 | $ 473,097
For Capital Adequacy Purposes | $ 224,310 | $ 213,107
Total capital (to risk-weighted assets), Ratio [Abstract] |  |
Actual Ratio | 17.95% | 17.76%
For Capital Adequacy Purposes | 8.00% | 8.00%
Community Trust Bank, Inc [Member] |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Maximum dividend without Approval | $ 50,000 |
Tier I capital (to average assets), Amount [Abstract] |  |
Actual Amount | 445,107 | $ 416,861
For Capital Adequacy Purposes | 150,374 | 145,374
To Be Well-Capitalized Under Prompt Corrective Action Provision | $ 187,967 | $ 181,718
Tier I capital (to average assets), Ratio [Abstract] |  |
Actual Ratio | 11.84% | 11.47%
For Capital Adequacy Purposes | 4.00% | 4.00%
To Be Well-Capitalized Under Prompt Corrective Action Provision | 5.00% | 5.00%
Common equity Tier 1 capital (to risk weighted assets), Amount [Abstract] |  |
Actual Amount | $ 445,107 |
For Capital Adequacy Purposes | 125,895 |
To Be Well-Capitalized Under Prompt Corrective Action Provision | $ 181,848 |
Common equity Tier 1 capital (to risk weighted assets), Ratio [Abstract] |  |
Actual Ratio | 15.91% |
For Capital Adequacy Purposes | 4.50% |
To Be Well-Capitalized Under Prompt Corrective Action Provision | 6.50% |
Tier I capital (to risk weighted assets), Amount [Abstract] |  |
Actual Amount | $ 445,107 | $ 416,861
For Capital Adequacy Purposes | 167,859 | 106,274
To Be Well-Capitalized Under Prompt Corrective Action Provision | $ 223,812 | $ 159,411
Tier I capital (to risk weighted assets), Ratio [Abstract] |  |
Actual Ratio | 15.91% | 15.69%
For Capital Adequacy Purposes | 6.00% | 4.00%
To Be Well-Capitalized Under Prompt Corrective Action Provision | 8.00% | 6.00%
Total capital (to risk weighted assets), Amount [Abstract] |  |
Actual Amount | $ 480,099 | $ 450,081
For Capital Adequacy Purposes | 223,822 | 212,553
To Be Well-Capitalized Under Prompt Corrective Action Provision | $ 279,778 | $ 265,691
Total capital (to risk-weighted assets), Ratio [Abstract] |  |
Actual Ratio | 17.16% | 16.94%
For Capital Adequacy Purposes | 8.00% | 8.00%
To Be Well-Capitalized Under Prompt Corrective Action Provision | 10.00% | 10.00%

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- Definition The minimum Tier One Capital Ratio (Tier one capital divided by risk-weighted assets) required for capital adequacy purposes 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 Reference 2: 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 Reference 3: 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 + Details
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