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Regulatory Capital (Tables) | 9 Months Ended
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Sep. 30, 2022
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, 2022
|  | 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 |  | $ | 317,840 |  |  | 11.66 | % |  | $ | 218,100 |  |  | 8.00 | % |  | $ | 286,257 |  |  | 10.50 | % |  | N/A |  | N/A
First Business Bank |  | 313,112 |  |  | 11.49 |  |  | 217,954 |  |  | 8.00 |  |  | 286,065 |  |  | 10.50 |  |  | $ | 272,443 |  |  | 10.00 | %
Tier 1 capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 258,435 |  |  | 9.48 | % |  | $ | 163,575 |  |  | 6.00 | % |  | $ | 231,732 |  |  | 8.50 | % |  | N/A |  | N/A
First Business Bank |  | 288,014 |  |  | 10.57 |  |  | 163,466 |  |  | 6.00 |  |  | 231,576 |  |  | 8.50 |  |  | $ | 217,954 |  |  | 8.00 | %
Common equity tier 1 capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 246,443 |  |  | 9.04 | % |  | $ | 122,682 |  |  | 4.50 | % |  | $ | 190,838 |  |  | 7.00 | % |  | N/A |  | N/A
First Business Bank |  | 288,014 |  |  | 10.57 |  |  | 122,599 |  |  | 4.50 |  |  | 190,710 |  |  | 7.00 |  |  | $ | 177,088 |  |  | 6.50 | %
Tier 1 leverage capital (to adjusted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 258,435 |  |  | 9.34 | % |  | $ | 110,684 |  |  | 4.00 | % |  | $ | 110,684 |  |  | 4.00 | % |  | N/A |  | N/A
First Business Bank |  | 288,014 |  |  | 10.42 |  |  | 110,602 |  |  | 4.00 |  |  | 110,602 |  |  | 4.00 |  |  | $ | 138,253 |  |  | 5.00 | %
|  | As of December 31, 2021
|  | 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 |  | $ | 281,745 |  |  | 10.82 | % |  | $ | 208,337 |  |  | 8.00 | % |  | $ | 273,443 |  |  | 10.50 | % |  | N/A |  | N/A
First Business Bank |  | 280,448 |  |  | 10.78 |  |  | 208,142 |  |  | 8.00 |  |  | 273,187 |  |  | 10.50 |  |  | $ | 260,178 |  |  | 10.00 | %
Tier 1 capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 232,795 |  |  | 8.94 | % |  | $ | 156,253 |  |  | 6.00 | % |  | $ | 221,358 |  |  | 8.50 | % |  | N/A |  | N/A
First Business Bank |  | 255,286 |  |  | 9.81 |  |  | 156,107 |  |  | 6.00 |  |  | 221,151 |  |  | 8.50 |  |  | $ | 208,142 |  |  | 8.00 | %
Common equity tier 1 capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 222,719 |  |  | 8.55 | % |  | $ | 117,190 |  |  | 4.50 | % |  | $ | 182,295 |  |  | 7.00 | % |  | N/A |  | N/A
First Business Bank |  | 255,286 |  |  | 9.81 |  |  | 117,080 |  |  | 4.50 |  |  | 182,124 |  |  | 7.00 |  |  | $ | 169,116 |  |  | 6.50 | %
Tier 1 leverage capital (to adjusted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 232,795 |  |  | 8.94 | % |  | $ | 104,145 |  |  | 4.00 | % |  | $ | 104,145 |  |  | 4.00 | % |  | N/A |  | N/A
First Business Bank |  | 255,286 |  |  | 9.81 |  |  | 104,045 |  |  | 4.00 |  |  | 104,045 |  |  | 4.00 |  |  | $ | 130,056 |  |  | 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 https://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 https://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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