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Capital Requirements and Restriction on Retained Earnings - Actual Capital Levels and Minimum Required Levels (Detail) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
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Consolidated [Member] |  |
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items] |  |
Total Risk Based Capital, Actual, Amount | $ 140,088 | $ 131,581
Tier I Risk Based Capital, Actual, Amount | 127,519 | 120,334
CET1 Risk Based Capital, Actual, Amount | 75,819 |
Leverage, Actual, Amount | $ 127,519 | $ 120,334
Total Risk Based Capital, Actual, Ratio | 14.00% | 14.70%
Tier I Risk Based Capital, Actual, Ratio | 12.70% | 13.40%
CET1 Risk Based Capital, Actual, Ratio | 7.60% |
Leverage, Actual, Ratio | 10.00% | 10.30%
Total Risk Based Capital , For Capital Adequacy Purposes, Amount | $ 80,050 | $ 71,609
Tier I Risk Based Capital, For Capital Adequacy Purposes, Amount | 60,245 | 35,921
CET1 Risk Based Capital, For Capital Adequacy Purposes, Amount | 44,893 |
Leverage, For Capital Adequacy Purposes, Amount | $ 51,008 | $ 46,732
Total Risk Based Capital , For Capital Adequacy Purposes, Ratio | 8.00% | 8.00%
Tier I Risk Based Capital, For Capital Adequacy Purposes, Ratio | 6.00% | 4.00%
CET1 Risk Based Capital, For Capital Adequacy Purposes, Ratio | 4.50% |
Leverage, For Capital Adequacy Purposes, Ratio | 4.00% | 4.00%
Civista [Member] |  |
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items] |  |
Total Risk Based Capital, Actual, Amount | $ 126,795 | $ 111,470
Tier I Risk Based Capital, Actual, Amount | 113,883 | 100,259
CET1 Risk Based Capital, Actual, Amount | 102,755 |
Leverage, Actual, Amount | $ 113,883 | $ 100,259
Total Risk Based Capital, Actual, Ratio | 12.70% | 12.50%
Tier I Risk Based Capital, Actual, Ratio | 11.40% | 11.20%
CET1 Risk Based Capital, Actual, Ratio | 10.10% |
Leverage, Actual, Ratio | 8.90% | 8.60%
Total Risk Based Capital , For Capital Adequacy Purposes, Amount | $ 79,871 | $ 71,341
Tier I Risk Based Capital, For Capital Adequacy Purposes, Amount | 59,938 | 35,807
CET1 Risk Based Capital, For Capital Adequacy Purposes, Amount | 45,782 |
Leverage, For Capital Adequacy Purposes, Amount | $ 51,183 | $ 46,632
Total Risk Based Capital , For Capital Adequacy Purposes, Ratio | 8.00% | 8.00%
Tier I Risk Based Capital, For Capital Adequacy Purposes, Ratio | 6.00% | 4.00%
CET1 Risk Based Capital, For Capital Adequacy Purposes, Ratio | 4.50% |
Leverage, For Capital Adequacy Purposes, Ratio | 4.00% | 4.00%
Total Risk Based Capital , To Be Well Capitalized Under Prompt Corrective Action Purposes, Amount | $ 99,839 | $ 89,176
Tier I Risk Based Capital, To Be Well Capitalized Under Prompt Corrective Action Purposes, Amount | 79,918 | 53,710
CET1 Risk Based Capital, To Be Well Capitalized Under Prompt Corrective Action Purposes, Amount | 66,129 |
Leverage, To Be Well Capitalized Under Prompt Corrective Action Purposes, Amount | $ 63,979 | $ 58,290
Total Risk Based Capital , To Be Well Capitalized Under Prompt Corrective Action Purposes, Ratio | 10.00% | 10.00%
Tier I Risk Based Capital, To Be Well Capitalized Under Prompt Corrective Action Purposes, Ratio | 8.00% | 6.00%
CET1 Risk Based Capital, To Be Well Capitalized Under Prompt Corrective Action Purposes, Ratio | 6.50% |
Leverage, To Be Well Capitalized Under Prompt Corrective Action Purposes, Ratio | 5.00% | 5.00%

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