| 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 |
|
|
Ratio |
|
| As of December 31, 2021: |
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|
|
|
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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 |
% |
|
$ |
508,027 |
|
|
|
4.50 |
% |
|
|
N/A |
|
|
|
N/A |
|
| ServisFirst Bank |
|
|
1,185,161 |
|
|
|
10.50 |
% |
|
|
507,969 |
|
|
|
4.50 |
% |
|
$ |
733,733 |
|
|
|
6.50 |
% |
| Tier I Capital to Risk Weighted Assets: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| Consolidated |
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|
1,124,326 |
|
|
|
9.96 |
% |
|
|
677,370 |
|
|
|
6.00 |
% |
|
|
N/A |
|
|
|
N/A |
|
| ServisFirst Bank |
|
|
1,185,661 |
|
|
|
10.50 |
% |
|
|
677,292 |
|
|
|
6.00 |
% |
|
|
903,056 |
|
|
|
8.00 |
% |
| Total Capital to Risk Weighted Assets: |
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| Consolidated |
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|
1,306,992 |
|
|
|
11.58 |
% |
|
|
903,160 |
|
|
|
8.00 |
% |
|
|
N/A |
|
|
|
N/A |
|
| ServisFirst Bank |
|
|
1,303,621 |
|
|
|
11.55 |
% |
|
|
903,056 |
|
|
|
8.00 |
% |
|
|
1,128,821 |
|
|
|
10.00 |
% |
| Tier I Capital to Average Assets: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| Consolidated |
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|
1,124,326 |
|
|
|
7.39 |
% |
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|
608,883 |
|
|
|
4.00 |
% |
|
|
N/A |
|
|
|
N/A |
|
| ServisFirst Bank |
|
|
1,185,661 |
|
|
|
7.79 |
% |
|
|
608,826 |
|
|
|
4.00 |
% |
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|
761,033 |
|
|
|
5.00 |
% |
| |
|
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|
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|
|
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|
|
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|
|
|
|
|
|
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|
| As of December 31, 2020: |
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| CET I Capital to Risk Weighted Assets: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| Consolidated |
|
$ |
958,300 |
|
|
|
10.50 |
% |
|
$ |
410,816 |
|
|
|
4.50 |
% |
|
|
N/A |
|
|
|
N/A |
|
| ServisFirst Bank |
|
|
1,018,031 |
|
|
|
11.15 |
% |
|
|
410,766 |
|
|
|
4.50 |
% |
|
$ |
593,328 |
|
|
|
6.50 |
% |
| Tier I Capital to Risk Weighted Assets: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| Consolidated |
|
|
958,800 |
|
|
|
10.50 |
% |
|
|
547,755 |
|
|
|
6.00 |
% |
|
|
N/A |
|
|
|
N/A |
|
| ServisFirst Bank |
|
|
1,018,531 |
|
|
|
11.16 |
% |
|
|
547,688 |
|
|
|
6.00 |
% |
|
|
730,250 |
|
|
|
8.00 |
% |
| Total Capital to Risk Weighted Assets: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| Consolidated |
|
|
1,113,690 |
|
|
|
12.20 |
% |
|
|
730,340 |
|
|
|
8.00 |
% |
|
|
N/A |
|
|
|
N/A |
|
| ServisFirst Bank |
|
|
1,108,673 |
|
|
|
12.15 |
% |
|
|
730,250 |
|
|
|
8.00 |
% |
|
|
912,813 |
|
|
|
10.00 |
% |
| Tier I Capital to Average Assets: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| Consolidated |
|
|
958,800 |
|
|
|
8.23 |
% |
|
|
465,980 |
|
|
|
4.00 |
% |
|
|
N/A |
|
|
|
N/A |
|
| ServisFirst Bank |
|
|
1,018,531 |
|
|
|
8.75 |
% |
|
|
465,448 |
|
|
|
4.00 |
% |
|
|
581,810 |
|
|
|
5.00 |
% |
|