| Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] |
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Actual |
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For Capital Adequacy Purposes |
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To Be Well Capitalized Under Prompt Corrective Action Provisions |
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| |
|
Amount |
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|
Ratio |
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|
Amount |
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|
Ratio |
|
|
Amount |
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|
Ratio |
|
| As of December 31, 2022: |
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|
|
|
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| CET I Capital to Risk Weighted Assets: |
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| Consolidated |
|
$ |
1,326,035 |
|
|
|
9.55 |
% |
|
$ |
624,986 |
|
|
|
4.50 |
% |
|
|
N/A |
|
|
|
N/A |
|
| ServisFirst Bank |
|
|
1,385,697 |
|
|
|
9.98 |
% |
|
|
624,942 |
|
|
|
4.50 |
% |
|
$ |
902,694 |
|
|
|
6.50 |
% |
| Tier I Capital to Risk Weighted Assets: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| Consolidated |
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|
1,326,535 |
|
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|
9.55 |
% |
|
|
833,315 |
|
|
|
6.00 |
% |
|
|
N/A |
|
|
|
N/A |
|
| ServisFirst Bank |
|
|
1,386,197 |
|
|
|
9.98 |
% |
|
|
833,256 |
|
|
|
6.00 |
% |
|
|
1,111,008 |
|
|
|
8.00 |
% |
| Total Capital to Risk Weighted Assets: |
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| Consolidated |
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|
1,532,134 |
|
|
|
11.03 |
% |
|
|
1,111,086 |
|
|
|
8.00 |
% |
|
|
N/A |
|
|
|
N/A |
|
| ServisFirst Bank |
|
|
1,533,069 |
|
|
|
11.04 |
% |
|
|
1,111,008 |
|
|
|
8.00 |
% |
|
|
1,388,760 |
|
|
|
10.00 |
% |
| Tier I Capital to Average Assets: |
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| Consolidated |
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|
1,326,535 |
|
|
|
9.29 |
% |
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|
570,960 |
|
|
|
4.00 |
% |
|
|
N/A |
|
|
|
N/A |
|
| ServisFirst Bank |
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|
1,386,197 |
|
|
|
9.71 |
% |
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|
570,924 |
|
|
|
4.00 |
% |
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|
713,656 |
|
|
|
5.00 |
% |
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|
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|
| As of December 31, 2021: |
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| CET I Capital to Risk Weighted Assets: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| Consolidated |
|
$ |
1,123,826 |
|
|
|
9.95 |
% |
|
$ |
508,065 |
|
|
|
4.50 |
% |
|
|
N/A |
|
|
|
N/A |
|
| ServisFirst Bank |
|
|
1,185,161 |
|
|
|
10.50 |
% |
|
|
508,007 |
|
|
|
4.50 |
% |
|
$ |
733,787 |
|
|
|
6.50 |
% |
| Tier I Capital to Risk Weighted Assets: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| Consolidated |
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|
1,124,326 |
|
|
|
9.96 |
% |
|
|
677,420 |
|
|
|
6.00 |
% |
|
|
N/A |
|
|
|
N/A |
|
| ServisFirst Bank |
|
|
1,185,661 |
|
|
|
10.50 |
% |
|
|
677,342 |
|
|
|
6.00 |
% |
|
|
903,123 |
|
|
|
8.00 |
% |
| Total Capital to Risk Weighted Assets: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| Consolidated |
|
|
1,306,992 |
|
|
|
11.58 |
% |
|
|
903,226 |
|
|
|
8.00 |
% |
|
|
N/A |
|
|
|
N/A |
|
| ServisFirst Bank |
|
|
1,303,621 |
|
|
|
11.55 |
% |
|
|
903,123 |
|
|
|
8.00 |
% |
|
|
1,128,903 |
|
|
|
10.00 |
% |
| Tier I Capital to Average Assets: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| Consolidated |
|
|
1,124,326 |
|
|
|
7.39 |
% |
|
|
608,880 |
|
|
|
4.00 |
% |
|
|
N/A |
|
|
|
N/A |
|
| ServisFirst Bank |
|
|
1,185,661 |
|
|
|
7.79 |
% |
|
|
608,826 |
|
|
|
4.00 |
% |
|
|
761,033 |
|
|
|
5.00 |
% |
|