v3.25.4
PARENT COMPANY ONLY - Condensed Income Statement and Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
PARENT COMPANY ONLY      
Income before equity in undistributed income (excess distributions) of subsidiaries $ 28,643 $ 31,871 $ 30,483
Net income 23,427 25,958 24,148
COMPREHENSIVE INCOME (LOSS) 37,393 27,634 35,589
Parent Company      
PARENT COMPANY ONLY      
Dividends from Citizens & Northern Bank 18,723 17,341 19,405
Expenses (1,758) (1,644) (2,003)
Income before equity in undistributed income (excess distributions) of subsidiaries 18,865 17,197 19,202
Equity in undistributed income (excess distributions) of subsidiaries 4,562 8,761 4,946
Net income 23,427 25,958 24,148
COMPREHENSIVE INCOME (LOSS) 37,393 27,634 35,589
Citizens and Northern Investment Corporation [Member] | Citizens and Northern Investment Corporation [Member]      
PARENT COMPANY ONLY      
Dividends from Citizens & Northern Bank $ 1,900 $ 1,500 $ 1,800