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Capital Requirements and Restrictions on Retained Earnings - Summary of Actual and Required Capital Amounts and Ratios (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Consolidated |  |
Total Capital to Risk Weighted Assets |  |
Total Capital to Risk Weighted Assets, Actual Amount | $ 350,806 | $ 319,340
Total Capital to Risk Weighted Assets, Actual Ratio | 12.51% | 13.21%
Total Capital to Risk Weighted Assets, For Capital Adequacy Purposes Amount | $ 294,407 | $ 238,719
Total Capital to Risk Weighted Assets, For Capital Adequacy Purposes Ratio | 10.50% | 9.875%
Tier 1 (Core) Capital to Risk Weighted Assets |  |
Tier 1 (Core) Capital to Risk Weighted Assets, Actual Amount | $ 281,333 | $ 249,636
Tier 1 (Core) Capital to Risk Weighted Assets, Actual Ratio | 10.03% | 10.33%
Tier 1 (Core) Capital to Risk Weighted Assets, For Capital Adequacy Purposes Amount | $ 238,330 | $ 190,371
Tier 1 (Core) Capital to Risk Weighted Assets, For Capital Adequacy Purposes Ratio | 8.50% | 7.875%
Common equity Tier 1 to Risk Weighted Assets |  |
Common equity Tier 1 to Risk Weighted Assets, Actual Amount | $ 261,333 | $ 229,636
Common equity Tier 1 to Risk Weighted Assets, Actual Ratio | 9.32% | 9.50%
Common equity Tier 1 to Risk Weighted Assets, For Capital Adequacy Purposes Amount | $ 196,272 | $ 154,110
Common equity Tier 1 to Risk Weighted Assets, For Capital Adequacy Purposes Ratio | 7.00% | 6.375%
Tier 1 (Core) Capital to Average Assets |  |
Tier 1 (Core) Capital to Average Assets, Actual Amount | $ 281,333 | $ 249,636
Tier 1 (Core) Capital to Average Assets, Actual Ratio | 7.86% | 7.87%
Tier 1 (Core) Capital to Average Assets, For Capital Adequacy Purposes, Amount | $ 143,189 | $ 126,882
Tier 1 (Core) Capital to Average Assets, For Capital Adequacy Purposes, Ratio | 4.00% | 4.00%
Bank |  |
Total Capital to Risk Weighted Assets |  |
Total Capital to Risk Weighted Assets, Actual Amount | $ 330,321 | $ 302,627
Total Capital to Risk Weighted Assets, Actual Ratio | 11.87% | 12.59%
Total Capital to Risk Weighted Assets, For Capital Adequacy Purposes Amount | $ 292,271 | $ 237,325
Total Capital to Risk Weighted Assets, For Capital Adequacy Purposes Ratio | 10.50% | 9.875%
Total Capital to Risk Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount | $ 292,271 | $ 240,329
Total Capital to Risk Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio | 10.50% | 10.00%
Tier 1 (Core) Capital to Risk Weighted Assets |  |
Tier 1 (Core) Capital to Risk Weighted Assets, Actual Amount | $ 312,795 | $ 284,722
Tier 1 (Core) Capital to Risk Weighted Assets, Actual Ratio | 11.24% | 11.85%
Tier 1 (Core) Capital to Risk Weighted Assets, For Capital Adequacy Purposes Amount | $ 236,600 | $ 189,259
Tier 1 (Core) Capital to Risk Weighted Assets, For Capital Adequacy Purposes Ratio | 8.50% | 7.875%
Tier 1 (Core) Capital to Risk Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 236,600 | $ 192,263
Tier 1 (Core) Capital to Risk Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 8.50% | 8.00%
Common equity Tier 1 to Risk Weighted Assets |  |
Common equity Tier 1 to Risk Weighted Assets, Actual Amount | $ 305,416 | $ 277,343
Common equity Tier 1 to Risk Weighted Assets, Actual Ratio | 10.97% | 11.54%
Common equity Tier 1 to Risk Weighted Assets, For Capital Adequacy Purposes Amount | $ 194,847 | $ 153,210
Common equity Tier 1 to Risk Weighted Assets, For Capital Adequacy Purposes Ratio | 7.00% | 6.375%
Common equity Tier 1 to Risk Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 194,847 | $ 156,214
Common equity Tier 1 to Risk Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 7.00% | 6.50%
Tier 1 (Core) Capital to Average Assets |  |
Tier 1 (Core) Capital to Average Assets, Actual Amount | $ 312,795 | $ 284,722
Tier 1 (Core) Capital to Average Assets, Actual Ratio | 8.79% | 9.12%
Tier 1 (Core) Capital to Average Assets, For Capital Adequacy Purposes, Amount | $ 142,301 | $ 124,903
Tier 1 (Core) Capital to Average Assets, For Capital Adequacy Purposes, Ratio | 4.00% | 4.00%
Tier 1 (Core) Capital to Average Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 177,876 | $ 156,128
Tier 1 (Core) Capital to Average Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 5.00% | 5.00%

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