Annual report pursuant to Section 13 and 15(d)

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

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Note 14 - Regulatory Matters - The Company's and Bank's Actual Capital Amounts and Ratios (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
CET 1 Capital to risk weighted assets, amount $ 822,396 $ 705,203
CET 1 Capital to risk weighted assets, ratio 10.50% 10.12%
CET 1 Capital to risk weighted assets, for capital adequacy purposes, amount $ 342,283 $ 313,564
CET 1 capital to risk weighted assets, for capital adequacy purposes, ratio 4.50% 4.50%
Tier 1 capital to risk weighted assets, amount $ 822,896 $ 705,705
Tier 1 capital to risk weighted assets, ratio 10.50% 10.13%
Tier 1 capital to risk weighted assets, for capital adequacy purposes, amount $ 456,377 $ 418,086
Tier 1 capital to risk weighted assets, for capital adequacy purposes, ratio 6.00% 6.00%
Total capital to risk weighted assets, amount $ 964,683 $ 839,471
Total capital to risk weighted assets, ratio 12.31% 12.05%
Total capital to risk weighted assets, for capital adequacy purposes, amount $ 608,502 $ 557,448
Total capital to risk weighted assets, for capital adequacy purposes, ratio 8.00% 8.00%
Tier 1 capital to average assets, amount $ 822,896 $ 705,705
Tier 1 capital to average assets, ratio 9.13% 9.07%
Tier 1 capital to average assets, for capital adequacy purposes, amount $ 356,012 $ 311,214
Tier 1 capital to average assets, for capital adequacy purposes, ratio 4.00% 4.00%
Servisfirst Bank [Member]    
CET 1 Capital to risk weighted assets, amount $ 885,172 $ 768,614
CET 1 Capital to risk weighted assets, ratio 11.30% 11.03%
CET 1 Capital to risk weighted assets, for capital adequacy purposes, amount $ 342,269 $ 313,554
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 $ 494,389 $ 452,911
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 $ 885,674 $ 769,116
Tier 1 capital to risk weighted assets, ratio 11.31% 11.04%
Tier 1 capital to risk weighted assets, for capital adequacy purposes, amount $ 456,359 $ 418,071
Tier 1 capital to risk weighted assets, for capital adequacy purposes, ratio 6.00% 6.00%
Tier 1 capital to risk weighted assets, to be well capitalized under prompt corrective action provisions, amount $ 608,479 $ 557,428
Tier 1 capital to risk weighted assets, to be well capitalized under prompt corrective action provisions, ratio 8.00% 8.00%
Total capital to risk weighted assets, amount $ 962,758 $ 838,216
Total capital to risk weighted assets, ratio 12.29% 12.03%
Total capital to risk weighted assets, for capital adequacy purposes, amount $ 608,479 $ 557,428
Total capital to risk weighted assets, for capital adequacy purposes, ratio 8.00% 8.00%
Total capital to risk weighted assets, to be well capitalized under prompt corrective action provisions, amount $ 760,598 $ 696,786
Total capital to risk weighted assets, to be well capitalized under prompt corrective action provisions, ratio 10.00% 10.00%
Tier 1 capital to average assets, amount $ 885,674 $ 769,116
Tier 1 capital to average assets, ratio 9.83% 9.89%
Tier 1 capital to average assets, for capital adequacy purposes, amount $ 355,998 $ 311,206
Tier 1 capital to average assets, for capital adequacy purposes, ratio 4.00% 4.00%
Tier 1 capital to average assets, to be well capitalized under prompt corrective action provisions, amount $ 444,997 $ 389,007
Tier 1 capital to average assets, to be well capitalized uner prompt corrective action provisions, ratio 5.00% 5.00%