v3.26.1
Schedule of Assets (Held at End of Year) (Details) - EBP 001
12 Months Ended
Dec. 31, 2025
USD ($)
shares
EBP, Schedule of Asset Held for Investment [Line Items]  
Plan name Employee Stock Ownership Plan
EIN 64-0655312
Plan number 001
EBP, Asset Held for Investment, Party-in-Interest [true false] true
Notes receivable from participants, payable semimonthly, Current Value $ 944,320
Minimum  
EBP, Schedule of Asset Held for Investment [Line Items]  
Maturity date Dec. 31, 2026
Interest rates 5.25%
Maximum  
EBP, Schedule of Asset Held for Investment [Line Items]  
Maturity date Dec. 31, 2031
Interest rates 10.50%
Mutual Funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value $ 70,796,928
Investment, Identifier [Axis]: American Funds American Fund TD 2025  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] American 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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 61,863
Investment, Identifier [Axis]: American Funds American Fund TD 2030  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] American 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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 161,759
Investment, Identifier [Axis]: American Funds American Fund TD 2035  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] American 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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 197,089
Investment, Identifier [Axis]: American Funds American Fund TD 2040  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] American 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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 150,809
Investment, Identifier [Axis]: American Funds American Fund TD 2045  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] American 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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 318,429
Investment, Identifier [Axis]: American Funds American Fund TD 2050  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] American 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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 50,053
Investment, Identifier [Axis]: American Funds American Fund TD 2055  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] American 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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 310,101
Investment, Identifier [Axis]: American Funds American Fund TD 2060  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] American 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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 54,551
Investment, Identifier [Axis]: American Funds American Fund TD 2065  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] American 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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 102,976
Investment, Identifier [Axis]: BancPlus Corporation common stock  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] BancPlus Corporation common stock [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Nonparticipant-Directed [Member]
EBP, Asset Held for Investment, Party-in-Interest [true false] true
EBP, Investment, Current Value, Type [Extensible Enumeration] EBP, Employer, Common Stock [Member]
Cost $ 31,721,456
Current Value $ 105,317,304
Number of shares | shares 1,385,754
Investment, Identifier [Axis]: BankPlus Wealth Management BankPlus Wealth Mgmt Aggressive  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] BankPlus Wealth Management [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, Party-in-Interest [true false] true
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 15,392,715
Investment, Identifier [Axis]: BankPlus Wealth Management BankPlus Wealth Mgmt Cons Growth  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] BankPlus Wealth Management [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, Party-in-Interest [true false] true
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 7,100,100
Investment, Identifier [Axis]: BankPlus Wealth Management BankPlus Wealth Mgmt Conservative  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] BankPlus Wealth Management [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, Party-in-Interest [true false] true
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 1,141,551
Investment, Identifier [Axis]: BankPlus Wealth Management BankPlus Wealth Mgmt Growth  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] BankPlus Wealth Management [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, Party-in-Interest [true false] true
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 14,427,123
Investment, Identifier [Axis]: BankPlus Wealth Management BankPlus Wealth Mgmt Mod Growth  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] BankPlus Wealth Management [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, Party-in-Interest [true false] true
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 7,545,910
Investment, Identifier [Axis]: BlackRock iShares MSCI EAFE Index Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] BlackRock [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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 770,027
Investment, Identifier [Axis]: Fidelity Fidelity 500 Index Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Fidelity [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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 8,712,824
Investment, Identifier [Axis]: Goldman Sachs Financial Square Government Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Goldman Sachs [Member]
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Nonparticipant-Directed [Member]
EBP, Investment, Current Value, Type [Extensible Enumeration] Money Market Mutual Fund [Member]
Cost $ 739,709
Current Value $ 739,709
Investment, Identifier [Axis]: Goldman Sachs Goldman Sachs GQG Partners Int'l  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Goldman Sachs [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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 926,601
Investment, Identifier [Axis]: Invesco Invesco QQQ Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Invesco [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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 5,743,418
Investment, Identifier [Axis]: JP Morgan JP Morgan Core Plus  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] JP Morgan [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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 175,960
Investment, Identifier [Axis]: Loomis Sayles Loomis Sayles Investment Grade Bond Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Loomis Sayles [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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 203,756
Investment, Identifier [Axis]: Neuberger Berman Neuberger Berman Large Cap Value  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Neuberger Berman [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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 1,547,536
Investment, Identifier [Axis]: PIMCO PIMCO Income Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] PIMCO [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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 602,174
Investment, Identifier [Axis]: Reliance Trust Reliance MetLife Stable Value  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Reliance Trust [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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]
Current Value $ 2,443,134
Investment, Identifier [Axis]: Vanguard Vanguard Emerging Markets ETF  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 503,727
Investment, Identifier [Axis]: Vanguard Vanguard Inflation Protected Securities  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 69,389
Investment, Identifier [Axis]: Vanguard Vanguard Mid Cap ETF  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 2,386,326
Investment, Identifier [Axis]: Vanguard Vanguard Small Cap ETF  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 1,871,870
Investment, Identifier [Axis]: Vanguard Vanguard Total Bond Market ETF  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 236,115
Investment, Identifier [Axis]: William Blair William Blair Small-Mid Cap  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] William Blair [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, Party-in-Interest [true false] false
EBP, Investment, Current Value, Type [Extensible Enumeration] Mutual Funds
Current Value $ 32,176