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Regulatory Capital (Tables) | 9 Months Ended
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Sep. 30, 2020
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract] |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations | The following tables summarize both the Corporation’s and the Bank’s capital ratios and the ratios required by their federal regulators:
|  | As of September 30, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Actual |  |  |  | Minimum Required for Capital Adequacy Purposes |  |  |  | For Capital Adequacy Purposes Plus Capital Conservation Buffer |  |  |  | Minimum Required to Be Well Capitalized Under Prompt Corrective Action Requirements |  |
|  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio
|  | (Dollars in Thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 252,325 |  |  | 11.42 | % |  | $ | 176,728 |  |  | 8.00 | % |  | $ | 231,956 |  |  | 10.50 | % |  | N/A |  | N/A
First Business Bank |  | 243,967 |  |  | 11.11 |  |  | 175,634 |  |  | 8.00 |  |  | 230,519 |  |  | 10.50 |  |  | 219,542 |  |  | 10.00 | %
Tier 1 capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 200,922 |  |  | 9.09 | % |  | $ | 132,546 |  |  | 6.00 | % |  | $ | 187,774 |  |  | 8.50 | % |  | N/A |  | N/A
First Business Bank |  | 216,469 |  |  | 9.86 |  |  | 131,725 |  |  | 6.00 |  |  | 186,611 |  |  | 8.50 |  |  | 175,634 |  |  | 8.00 |
Common equity tier 1 capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 190,864 |  |  | 8.64 | % |  | $ | 99,410 |  |  | 4.50 | % |  | $ | 154,637 |  |  | 7.00 | % |  | N/A |  | N/A
First Business Bank |  | 216,469 |  |  | 9.86 |  |  | 98,794 |  |  | 4.50 |  |  | 153,680 |  |  | 7.00 |  |  | 142,702 |  |  | 6.50 |
Tier 1 leverage capital (to adjusted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 200,922 |  |  | 8.04 | % |  | $ | 99,940 |  |  | 4.00 | % |  | $ | 99,940 |  |  | 4.00 | % |  | N/A |  | N/A
First Business Bank |  | 216,469 |  |  | 8.72 |  |  | 99,347 |  |  | 4.00 |  |  | 99,347 |  |  | 4.00 |  |  | 124,183 |  |  | 5.00 |
|  | As of December 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Actual |  |  |  | Minimum Required for Capital Adequacy Purposes |  |  |  | For Capital Adequacy Purposes Plus Capital Conservation Buffer |  |  |  | Minimum Required to Be Well Capitalized Under Prompt Corrective Action Requirements |  |
|  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio
|  | (Dollars in Thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 239,029 |  |  | 12.01 | % |  | $ | 159,185 |  |  | 8.00 | % |  | $ | 208,930 |  |  | 10.50 | % |  | N/A |  | N/A
First Business Bank |  | 233,181 |  |  | 11.79 |  |  | 158,177 |  |  | 8.00 |  |  | 207,607 |  |  | 10.50 |  |  | 197,721 |  |  | 10.00 | %
Tier 1 capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 194,456 |  |  | 9.77 | % |  | $ | 119,388 |  |  | 6.00 | % |  | $ | 169,134 |  |  | 8.50 | % |  | N/A |  | N/A
First Business Bank |  | 212,315 |  |  | 10.74 |  |  | 118,633 |  |  | 6.00 |  |  | 168,063 |  |  | 8.50 |  |  | 158,177 |  |  | 8.00 |
Common equity tier 1 capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 184,409 |  |  | 9.27 | % |  | $ | 89,541 |  |  | 4.50 | % |  | $ | 139,286 |  |  | 7.00 | % |  | N/A |  | N/A
First Business Bank |  | 212,315 |  |  | 10.74 |  |  | 88,974 |  |  | 4.50 |  |  | 138,405 |  |  | 7.00 |  |  | 128,519 |  |  | 6.50 |
Tier 1 leverage capital (to adjusted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 194,456 |  |  | 9.27 | % |  | $ | 83,950 |  |  | 4.00 | % |  | $ | 83,950 |  |  | 4.00 | % |  | N/A |  | N/A
First Business Bank |  | 212,315 |  |  | 10.18 |  |  | 83,414 |  |  | 4.00 |  |  | 83,414 |  |  | 4.00 |  |  | 104,268 |  |  | 5.00 |

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- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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