v3.26.1
Fair Value Measurements - Estimated fair values, and related carrying amounts, of financial instruments (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Financial assets    
Securities held to maturity $ 15,122 $ 16,744
Carrying Value    
Financial assets    
Cash and cash equivalents 7,227 6,450
Interest bearing deposits in banks 8,322 5,509
Securities held to maturity 16,708 18,283
Loans, net 313,078 301,986
Net investment in direct financing leases 998 1,219
Accrued interest receivable 1,992 1,888
Restricted investments carried at cost 2,833 2,773
Mortgage servicing rights 199 210
Financial liabilities    
Deposits 339,629 327,904
FHLB advances 46,464 45,669
Accrued interest payable 619 683
Fair Value    
Financial assets    
Cash and cash equivalents 7,227 6,450
Interest bearing deposits in banks 8,322 5,509
Securities held to maturity 15,122 16,744
Loans, net 303,758 293,446
Net investment in direct financing leases 968 1,185
Accrued interest receivable 1,992 1,888
Restricted investments carried at cost 2,833 2,773
Mortgage servicing rights 199 210
Financial liabilities    
Deposits 309,495 297,856
FHLB advances 46,666 46,478
Accrued interest payable 619 683
Level 1    
Financial assets    
Cash and cash equivalents 7,227 6,450
Interest bearing deposits in banks 8,322 5,509
Accrued interest receivable 1,992 1,888
Financial liabilities    
Accrued interest payable 619 683
Level 2    
Financial assets    
Securities held to maturity 15,122 16,744
Restricted investments carried at cost 2,833 2,773
Level 3    
Financial assets    
Loans, net 303,758 293,446
Net investment in direct financing leases 968 1,185
Mortgage servicing rights 199 210
Financial liabilities    
Deposits 309,495 297,856
FHLB advances $ 46,666 $ 46,478