v3.26.1
Schedule of Assets Held at End of Year 2 (Details) - EBP 20-2451671 002 [Member]
12 Months Ended
Dec. 31, 2025
USD ($)
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 82,512,617
Investment, Identifier [Axis]: BlackrockGlobalAllocationIMember  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 1,663,251
Investment, Identifier [Axis]: BlackrockInfltProtBdInstlMember  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 526,696
Investment, Identifier [Axis]: ClearbridgeIntlGrowthFdIMember  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 1,423,299
Investment, Identifier [Axis]: CohenAndSteersRealtyInstlClMember  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 954,363
Investment, Identifier [Axis]: EvEmAndFntrCtrsEqAMember  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 1,318,930
Investment, Identifier [Axis]: LincolnStableValueAccountMember  
EBP, Asset Held for Investment, Party-in-Interest [true false] true
EBP, Investment, Current Value, Type [Extensible Enumeration] EBP, Traditional Guaranteed Investment Contract [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 2,223,931
Investment, Identifier [Axis]: PimcoIncomeClI2Member  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 1,045,635
Investment, Identifier [Axis]: SchwabRetGvmntMoneyFundMember  
EBP, Asset Held for Investment, Party-in-Interest [true false] true
EBP, Investment, Current Value, Type [Extensible Enumeration] Money Market Funds [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 1,278,862
Investment, Identifier [Axis]: ServisfirstStockFundMember  
EBP, Asset Held for Investment, Party-in-Interest [true false] true
EBP, Investment, Current Value, Type [Extensible Enumeration] EBP, Employer, Common Stock Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 5,278,637
Investment, Identifier [Axis]: Vanguard500IndexAdmiralMember  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 12,537,460
Investment, Identifier [Axis]: VanguardDevelopedMktIdxAdmMember  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 2,842,312
Investment, Identifier [Axis]: VanguardGrowthIndexAdmiralMember  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 6,139,752
Investment, Identifier [Axis]: VanguardMidCapIndexAdmiralMember  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 2,924,707
Investment, Identifier [Axis]: VanguardSmCapValIndexAdmMember  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 1,874,809
Investment, Identifier [Axis]: VanguardSmallCapGrthIndexMember  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 2,299,344
Investment, Identifier [Axis]: VanguardTargetRetiremnt2020Member  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 345,331
Investment, Identifier [Axis]: VanguardTargetRetiremnt2025Member  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 3,123,828
Investment, Identifier [Axis]: VanguardTargetRetiremnt2030Member  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 8,487,069
Investment, Identifier [Axis]: VanguardTargetRetiremnt2035Member  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 3,848,103
Investment, Identifier [Axis]: VanguardTargetRetiremnt2040Member  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 3,157,780
Investment, Identifier [Axis]: VanguardTargetRetiremnt2045Member  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 4,113,668
Investment, Identifier [Axis]: VanguardTargetRetiremnt2050Member  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 2,631,656
Investment, Identifier [Axis]: VanguardTargetRetiremnt2055Member  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 911,721
Investment, Identifier [Axis]: VanguardTargetRetiremnt2060Member  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 1,517,090
Investment, Identifier [Axis]: VanguardTargetRetiremnt2065Member  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 604,536
Investment, Identifier [Axis]: VanguardTargetRetiremnt2070Member  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 351
Investment, Identifier [Axis]: VanguardTargetRetmtIncomeMember  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 1,622,254
Investment, Identifier [Axis]: VanguardUltraStBdAdmiralMember  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 477,257
Investment, Identifier [Axis]: VanguardValueIndexAdmMember  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 5,904,449
Investment, Identifier [Axis]: iSharesUsAggregateBondIndMember  
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Fund [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 1,435,536