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Regulatory Capital (Tables) | 6 Months Ended
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Jun. 30, 2021
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 June 30, 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 |  | $ | 271,536 |  |  | 11.22 | % |  | $ | 193,679 |  |  | 8.00 | % |  | $ | 254,203 |  |  | 10.50 | % |  | N/A |  | N/A
First Business Bank |  | 265,450 |  |  | 10.99 |  |  | 193,309 |  |  | 8.00 |  |  | 253,719 |  |  | 10.50 |  |  | 241,637 |  |  | 10.00 | %
Tier 1 capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 221,178 |  |  | 9.14 | % |  | $ | 145,259 |  |  | 6.00 | % |  | $ | 205,784 |  |  | 8.50 | % |  | N/A |  | N/A
First Business Bank |  | 238,860 |  |  | 9.89 |  |  | 144,982 |  |  | 6.00 |  |  | 205,391 |  |  | 8.50 |  |  | 193,309 |  |  | 8.00 |
Common equity tier 1 capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 211,109 |  |  | 8.72 | % |  | $ | 108,944 |  |  | 4.50 | % |  | $ | 169,469 |  |  | 7.00 | % |  | N/A |  | N/A
First Business Bank |  | 238,860 |  |  | 9.89 |  |  | 108,737 |  |  | 4.50 |  |  | 169,146 |  |  | 7.00 |  |  | 157,064 |  |  | 6.50 |
Tier 1 leverage capital (to adjusted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 221,178 |  |  | 8.48 | % |  | $ | 104,310 |  |  | 4.00 | % |  | $ | 104,310 |  |  | 4.00 | % |  | N/A |  | N/A
First Business Bank |  | 238,860 |  |  | 9.18 |  |  | 104,081 |  |  | 4.00 |  |  | 104,081 |  |  | 4.00 |  |  | 130,102 |  |  | 5.00 |
|  | As of December 31, 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 |  | $ | 258,607 |  |  | 11.25 | % |  | $ | 183,965 |  |  | 8.00 | % |  | $ | 241,454 |  |  | 10.50 | % |  | N/A |  | N/A
First Business Bank |  | 251,116 |  |  | 10.97 |  |  | 183,053 |  |  | 8.00 |  |  | 240,257 |  |  | 10.50 |  |  | 228,816 |  |  | 10.00 | %
Tier 1 capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 206,104 |  |  | 8.96 | % |  | $ | 137,974 |  |  | 6.00 | % |  | $ | 195,463 |  |  | 8.50 | % |  | N/A |  | N/A
First Business Bank |  | 222,500 |  |  | 9.72 |  |  | 137,290 |  |  | 6.00 |  |  | 194,494 |  |  | 8.50 |  |  | 183,053 |  |  | 8.00 |
Common equity tier 1 capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 196,042 |  |  | 8.53 | % |  | $ | 103,480 |  |  | 4.50 | % |  | $ | 160,970 |  |  | 7.00 | % |  | N/A |  | N/A
First Business Bank |  | 222,500 |  |  | 9.72 |  |  | 102,967 |  |  | 4.50 |  |  | 160,171 |  |  | 7.00 |  |  | 148,731 |  |  | 6.50 |
Tier 1 leverage capital (to adjusted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 206,104 |  |  | 7.99 | % |  | $ | 103,228 |  |  | 4.00 | % |  | $ | 103,228 |  |  | 4.00 | % |  | N/A |  | N/A
First Business Bank |  | 222,500 |  |  | 8.67 |  |  | 102,635 |  |  | 4.00 |  |  | 102,635 |  |  | 4.00 |  |  | 128,294 |  |  | 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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