v3.25.4
Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Tax Disclosure [Abstract]      
Computed at the statutory rate $ 5,540 $ 16,439 $ 507
Increase (decrease) resulting from:      
State and local taxes, net of federal benefit 491 [1] 364 (517)
Investments reported under proportional amortization method   (1,441) (1,253)
Bargain purchase gain   (448)  
Captive insurance company   (273) (311)
BOLI surrender   3,575  
Tax Credits      
Federal tax credits (8) (92) (3,715)
PAM investments (453)    
Change in federal valuation allowance   (1,410) 98
Non-taxable or non-deductible items      
Tax-exempt interest (524) (332) (412)
Non-taxable life insurance income (1,620) (1,043) (852)
Captive income excluded (331)    
Non-deductible transactions costs 338 56 62
Non-deductible expenses   426 814
Share-based payments/Executive compensation 416 (477) 2
Other 436    
Other   316 171
Tax interest or expense included in income (631)    
Total income tax expense $ 3,654 $ 15,660 $ (5,406)
ETR      
Computed at the Statutory rate 21.00% 21.00% 21.00%
State and local taxes, net of federal benefit [1] 1.90%    
Tax Credits      
Federal tax credits 0.00%    
PAM investments (1.70%)    
Non-taxable or non-deductible items      
Tax-exempt interest (2.00%)    
Non-taxable life insurance income (6.10%)    
Captive income excluded (1.30%)    
Transaction costs 1.30%    
Executive compensation 1.60%    
Other 1.60%    
Other      
Tax interest or expense included in income (2.40%)    
Income tax expense 13.90%    
[1] State taxes in Kansas made up the majority (greater than 50%) of the tax effect in this category.