Annual report [Section 13 and 15(d), not S-K Item 405]

Note 14 - Regulatory Matters - The Company's and Bank's Actual Capital Amounts and Ratios (Details)

v3.25.0.1
Note 14 - Regulatory Matters - The Company's and Bank's Actual Capital Amounts and Ratios (Details)
$ in Thousands
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
CET 1 Capital to risk weighted assets, amount $ 1,634,837 $ 1,473,831
CET 1 Capital to risk weighted assets, ratio 0.1142 0.1091
CET 1 Capital to risk weighted assets, for capital adequacy purposes, amount $ 644,441 $ 607,690
CET 1 capital to risk weighted assets, for capital adequacy purposes, ratio 4.50% 4.50%
Tier 1 capital to risk weighted assets, amount $ 1,635,337 $ 1,474,331
Tier 1 capital to risk weighted assets, ratio 0.1142 0.1092
Tier 1 capital to risk weighted assets, for capital adequacy purposes, amount $ 859,255 $ 810,253
Tier 1 capital to risk weighted assets, for capital adequacy purposes, ratio 0.06 0.06
Total capital to risk weighted assets, amount $ 1,847,146 $ 1,680,974
Total capital to risk weighted assets, ratio 0.129 0.1245
Total capital to risk weighted assets, for capital adequacy purposes, amount $ 1,145,673 $ 1,080,338
Total capital to risk weighted assets, for capital adequacy purposes, ratio 0.08 0.08
Tier 1 capital to average assets, amount $ 1,635,337 $ 1,474,331
Tier 1 capital to average assets, ratio 0.0959 0.0912
Tier 1 capital to average assets, for capital adequacy purposes, amount $ 682,238 $ 646,710
Tier 1 capital to average assets, for capital adequacy purposes, ratio 0.04 0.04
Servisfirst Bank [Member]    
CET 1 Capital to risk weighted assets, amount $ 1,694,412 $ 1,535,757
CET 1 Capital to risk weighted assets, ratio 0.1183 0.1137
CET 1 Capital to risk weighted assets, for capital adequacy purposes, amount $ 644,402 $ 607,665
CET 1 capital to risk weighted assets, for capital adequacy purposes, ratio 4.50% 4.50%
CET 1 capital to risk weighted assets, to be well capitalized under prompt corrective action provisions, amount $ 930,803 $ 877,738
CET 1 capital to risk weighted assets, to be well capitalized under prompt corrective action provisions, ratio 6.50% 6.50%
Tier 1 capital to risk weighted assets, amount $ 1,694,912 $ 1,536,257
Tier 1 capital to risk weighted assets, ratio 0.1184 0.1138
Tier 1 capital to risk weighted assets, for capital adequacy purposes, amount $ 859,203 $ 810,220
Tier 1 capital to risk weighted assets, for capital adequacy purposes, ratio 0.06 0.06
Tier 1 capital to risk weighted assets, to be well capitalized under prompt corrective action provisions, amount $ 1,145,604 $ 1,080,293
Tier 1 capital to risk weighted assets, to be well capitalized under prompt corrective action provisions, ratio 0.08 0.08
Total capital to risk weighted assets, amount $ 1,859,978 $ 1,690,149
Total capital to risk weighted assets, ratio 0.1299 0.1252
Total capital to risk weighted assets, for capital adequacy purposes, amount $ 1,145,604 $ 1,080,293
Total capital to risk weighted assets, for capital adequacy purposes, ratio 0.08 0.08
Total capital to risk weighted assets, to be well capitalized under prompt corrective action provisions, amount $ 1,432,005 $ 1,350,366
Total capital to risk weighted assets, to be well capitalized under prompt corrective action provisions, ratio 0.10 0.10
Tier 1 capital to average assets, amount $ 1,694,912 $ 1,536,257
Tier 1 capital to average assets, ratio 0.0994 0.095
Tier 1 capital to average assets, for capital adequacy purposes, amount $ 682,223 $ 646,675
Tier 1 capital to average assets, for capital adequacy purposes, ratio 0.04 0.04
Tier 1 capital to average assets, to be well capitalized under prompt corrective action provisions, amount $ 852,779 $ 808,343
Tier 1 capital to average assets, to be well capitalized under prompt corrective action provisions, ratio 0.05 0.05