BORROWED FUNDS - Subordinated Borrowings (Details) - Subordinated Debt - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
BORROWED FUNDS
Principal	$ 53,620	$ 40,620
Unamortized Discount and Debt	(795)
NHTB Capital Trust II Variable Debentures
BORROWED FUNDS
Principal	10,310	10,310
NHTB Capital Trust III Fixed Debentures
BORROWED FUNDS
Principal	10,310	10,310
Subordinated Notes Due 2029
BORROWED FUNDS
Principal	20,000	$ 20,000
Subordinated Notes Due 2031
BORROWED FUNDS
Principal	13,000
Unamortized Discount and Debt	$ (795)