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REGULATORY MATTERS: (Tables) | 12 Months Ended
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Dec. 31, 2020
Financial Services, Banking and Thrift [Abstract] |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations | The following table presents the actual and required capital amounts and related ratios for the Corporation and First Financial Bank, N.A., at year-end 2020 and 2019.
|  |  |  |  |  |  |  |  |  | To Be Well Capitalized
|  |  |  |  |  | For Capital |  | Under Prompt Corrective
|  | Actual |  | Adequacy Purposes |  | Action Provisions
(Dollar amounts in thousands) |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio
Total risk-based capital |  |  |  |  |  |  |  |  |  |  |  |
Corporation – 2020 |  | $ | 538,440 |  |  | 17.40 | % |  | $ | 324,849 |  |  | 10.500 | % |  | N/A |  | N/A
Corporation – 2019 |  | $ | 495,817 |  |  | 16.16 | % |  | $ | 322,091 |  |  | 10.500 | % |  | N/A |  | N/A
First Financial Bank – 2020 |  | 507,869 |  |  | 17.03 | % |  | 313,075 |  |  | 10.500 | % |  | 298,166 |  |  | 10.00 | %
First Financial Bank – 2019 |  | 472,995 |  |  | 15.91 | % |  | 312,111 |  |  | 10.500 | % |  | 297,249 |  |  | 10.00 | %
Common equity tier I capital |  |  |  |  |  |  |  |  |  |  |  |
Corporation – 2020 |  | $ | 499,664 |  |  | 16.15 | % |  | $ | 216,566 |  |  | 7.000 | % |  | N/A |  | N/A
Corporation – 2019 |  | $ | 475,874 |  |  | 15.51 | % |  | $ | 214,728 |  |  | 7.000 | % |  | N/A |  | N/A
First Financial Bank – 2020 |  | 470,551 |  |  | 15.78 | % |  | 208,716 |  |  | 7.000 | % |  | 193,808 |  |  | 6.50 | %
First Financial Bank – 2019 |  | 457,649 |  |  | 15.40 | % |  | 208,074 |  |  | 7.000 | % |  | 193,212 |  |  | 6.50 | %
Tier I risk-based capital |  |  |  |  |  |  |  |  |  |  |  |
Corporation – 2020 |  | $ | 499,664 |  |  | 16.15 | % |  | $ | 262,973 |  |  | 8.500 | % |  | N/A |  | N/A
Corporation – 2019 |  | $ | 475,874 |  |  | 15.51 | % |  | $ | 260,741 |  |  | 8.500 | % |  | N/A |  | N/A
First Financial Bank – 2020 |  | 470,551 |  |  | 15.78 | % |  | 253,441 |  |  | 8.500 | % |  | 238,533 |  |  | 8.00 | %
First Financial Bank – 2019 |  | 457,649 |  |  | 15.40 | % |  | 252,661 |  |  | 8.500 | % |  | 237,799 |  |  | 8.00 | %
Tier I leverage capital |  |  |  |  |  |  |  |  |  |  |  |
Corporation – 2020 |  | $ | 499,664 |  |  | 11.24 | % |  | $ | 177,781 |  |  | 4.00 | % |  | N/A |  | N/A
Corporation – 2019 |  | $ | 475,874 |  |  | 12.04 | % |  | $ | 158,081 |  |  | 4.00 | % |  | N/A |  | N/A
First Financial Bank – 2020 |  | 470,551 |  |  | 10.90 | % |  | 172,728 |  |  | 4.00 | % |  | 215,910 |  |  | 5.00 | %
First Financial Bank – 2019 |  | 457,649 |  |  | 11.93 | % |  | 153,453 |  |  | 4.00 | % |  | 191,816 |  |  | 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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