v3.26.1
Accumulated Other Comprehensive Income Balances Of Each Component Of Accumulated Other Comprehensive Income, Net Of Tax (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Accumulated Other Comprehensive Income (Loss) [Roll Forward]                
Other comprehensive income (loss), net of tax $ (201) $ 237 $ (929) $ 467        
Total stockholders' equity 286,571 266,177 286,571 266,177 $ 272,890 $ 268,300 $ 254,412 $ 251,773
Unrealized Gains and Losses On Available-for-Sale Securities                
Accumulated Other Comprehensive Income (Loss) [Roll Forward]                
Other comprehensive (loss) income before calculations (200) 244 (922) 421        
Amounts reclassified from accumulated other comprehensive income 4 (1) (24) (4)        
Other comprehensive income (loss), net of tax (196) 243 (946) 417        
Total stockholders' equity 46 717 46 717 242 992 474 300
Postretirement Benefit Plans                
Accumulated Other Comprehensive Income (Loss) [Roll Forward]                
Other comprehensive (loss) income before calculations (5) (6) 17 50        
Amounts reclassified from accumulated other comprehensive income 0 0 0 0        
Other comprehensive income (loss), net of tax (5) (6) 17 50        
Total stockholders' equity 116 105 116 105 121 99 111 55
Accumulated Other Comprehensive Income                
Accumulated Other Comprehensive Income (Loss) [Roll Forward]                
Other comprehensive (loss) income before calculations (205) 238 (905) 471        
Amounts reclassified from accumulated other comprehensive income 4 (1) (24) (4)        
Other comprehensive income (loss), net of tax (201) 237 (929) 467        
Total stockholders' equity $ 162 $ 822 $ 162 $ 822 $ 363 $ 1,091 $ 585 $ 355