v3.26.3
SUBORDINATED NOTES - Narrative (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended
Jun. 30, 2006
Nov. 30, 2004
Sep. 30, 2026
Sep. 30, 2025
Jun. 30, 2026
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Jul. 01, 2024
Notes Payable, Other Payables | Subordinated notes                  
Debt Instrument [Line Items]                  
Subordinated notes payable outstanding     $ 0     $ 0   $ 31,000,000.0  
Codorus Valley Unsecured Subordinated Notes | Subordinated notes                  
Debt Instrument [Line Items]                  
Fixed rate of interest         4.50%     4.50%  
Debt instrument basis spread         4.04%        
Debt instrument interest rate         7.72%     8.06%  
Fair value of the debt     28,600,000     28,600,000      
Unamortized discount     2,400,000     2,400,000      
Unearned discount     0     0   $ 1,800,000  
Amortization of debt issuance costs and discounts     0 $ 93,000   1,800,000 $ 276,000    
Accelerated amortization of unearned discounts     $ 0     $ 1,600,000      
Codorus Valley Unsecured Subordinated Notes | Subordinated notes | Codorus Valley                  
Debt Instrument [Line Items]                  
Debt redeemed amount         $ 31,000,000.0        
Codorus Valley Junior Subordinated Trust Preferred Debt | Subordinated notes | CVB Statutory Trust No. II                  
Debt Instrument [Line Items]                  
Debt instrument basis spread 0.26161%                
Pooled trust preferred debt issuance $ 7,200,000                
Debt instrument, interest rate, effective percentage 1.54%                
Codorus Valley Junior Subordinated Trust Preferred Debt | Subordinated notes | CVB Statutory Trust No. I                  
Debt Instrument [Line Items]                  
Debt instrument basis spread   0.26161%              
Pooled trust preferred debt issuance   $ 3,100,000              
Debt instrument, interest rate, effective percentage   2.02%              
Codorus Valley Junior Subordinated Trust Preferred Debt | Junior Subordinated Debt                  
Debt Instrument [Line Items]                  
Fair value of the debt                 $ 7,600,000
Unamortized discount                 2,700,000
Debt instrument face amount                 $ 10,300,000