Annual report pursuant to Section 13 and 15(d)

REGULATORY MATTERS (The Company's And Bank's Actual Capital Amounts And Ratios) (Detail)

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REGULATORY MATTERS (The Company's And Bank's Actual Capital Amounts And Ratios) (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Servisfirst Bank [Member]
    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Total Capital to Risk Weighted Assets, Actual Amount $ 341,256 $ 284,141
Total Capital to Risk Weighted Assets, Actual Ratio 11.64% 11.66%
Total Capital to Risk Weighted Assets, For Capital Adequacy Purposes, Amount 234,601 194,942
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 293,252 243,678
Total Capital to Risk Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio 10.00% 10.00%
Tier I Capital to Risk Weighted Assets, Actual Amount 310,593 257,883
Tier I Capital to Risk Weighted Assets, Actual Ratio 10.59% 10.58%
Tier I Capital to Risk Weighted Assets, For Capital Adequacy Purposes, Amount 117,301 97,471
Tier I Capital to Risk Weighted Assets, For Capital Adequacy Purposes, Ratio 4.00% 4.00%
Tier I Capital to Risk Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount 175,951 146,207
Tier I Capital to Risk Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio 6.00% 6.00%
Tier I Capital to Average Assets, Actual Amount 310,593 257,883
Tier I Capital to Average Assets, Actual Ratio 8.98% 9.03%
Tier I Capital to Average Assets, For Capital Adequacy Purposes, Amount 138,331 114,227
Tier I Capital to Average Assets, For Capital Adequacy Purposes, Ratio 4.00% 4.00%
Tier I Capital to Average Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount 172,913 142,784
Tier I Capital to Average Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio 5.00% 5.00%
Consolidated Entities [Member]
    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Total Capital to Risk Weighted Assets, Actual Amount 343,904 287,136
Total Capital to Risk Weighted Assets, Actual Ratio 11.73% 11.78%
Total Capital to Risk Weighted Assets, For Capital Adequacy Purposes, Amount 234,617 194,943
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 0 0
Total Capital to Risk Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio 0.00% 0.00%
Tier I Capital to Risk Weighted Assets, Actual Amount 293,301 240,961
Tier I Capital to Risk Weighted Assets, Actual Ratio 10.00% 9.89%
Tier I Capital to Risk Weighted Assets, For Capital Adequacy Purposes, Amount 117,308 97,472
Tier I Capital to Risk Weighted Assets, For Capital Adequacy Purposes, Ratio 4.00% 4.00%
Tier I Capital to Risk Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount 0 0
Tier I Capital to Risk Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio 0.00% 0.00%
Tier I Capital to Average Assets, Actual Amount 293,301 240,961
Tier I Capital to Average Assets, Actual Ratio 8.48% 8.43%
Tier I Capital to Average Assets, For Capital Adequacy Purposes, Amount 138,373 114,323
Tier I Capital to Average Assets, For Capital Adequacy Purposes, Ratio 4.00% 4.00%
Tier I Capital to Average Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount $ 0 $ 0
Tier I Capital to Average Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio 0.00% 0.00%