Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

Document And Entity Information - USD ($)
12 Months Ended
Dec. 31, 2019
Feb. 21, 2020
Jun. 30, 2019
Document Information [Line Items]      
Entity Central Index Key 0001430723    
Entity Registrant Name ServisFirst Bancshares, Inc.    
Amendment Flag true    
Current Fiscal Year End Date --12-31    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2019    
Document Type 10-K/A    
Document Annual Report true    
Document Period End Date Dec. 31, 2019    
Document Transition Report false    
Entity File Number 001-36452    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 26-0734029    
Entity Address, Address Line One 2500 Woodcrest Place    
Entity Address, City or Town Birmingham    
Entity Address, State or Province AL    
Entity Address, Postal Zip Code 35209    
City Area Code 205    
Local Phone Number 949-0302    
Title of 12(b) Security Common stock, par value $.001 per share    
Trading Symbol SFBS    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 1,581,146,000
Entity Common Stock, Shares Outstanding   53,703,632  
Amendment Description ServisFirst Bancshares, Inc., a Delaware corporation, together with its subsidiaries, including ServisFirst Bank, the “Company”, which may also be referred to as “we”, “our”, “us”, “ServisFirst Bancshares”, and “ServisFirst”, is filing this Amendment No. 1 to Annual Report on Form 10-K/A (the “Amendment”) to our Annual Report on Form 10-K for the fiscal year ended December 31, 2019, which was filed with the Securities and Exchange Commission on February 25, 2020 (the “Original Filing”). The Company is filing this Amendment solely for the purpose of including in Part II, Item 8 of its Annual Report on Form 10-K for the fiscal year ended December 31, 2019 the Consolidated Statement of Cash Flows for the fiscal year ended December 31, 2017, which was inadvertently omitted from the Original Filing.  This addition to the Consolidated Statements of Cash Flows does not affect Dixon Hughes Goodman LLP’s unqualified opinion on our consolidated financial statements included in the Original Form 10-K and this Amendment.   The Amendment includes the Consent of Independent Registered Public Accounting Firm in Exhibit 23 and updates Part IV, Item 15 of the Original Filing to include new certifications of our Chief Executive Officer and Chief Financial Officer as Exhibits 31.3, 31.4, 32.3 and 32.4.    Except as described above, no other changes have been made to the Original Filing. This Amendment does not reflect subsequent events that may have occurred after the original filing date of the Original Filing or modify or update in any way disclosures made in the Original Filing. Among other things, forward-looking statements made in the Original Filing have not been revised to reflect events that occurred or facts that became known to us after the filing of the Original Filing, and such forward-looking statements should be read in their historical context. Furthermore, this Amendment should be read in conjunction with the Original Filing and any other Company filings with the Securities and Exchange Commission made subsequent to the Original Filing.