Statements of cash flows of Salisbury Bancorp, Inc. (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Condensed Financial Statements, Captions [Line Items]
Net income	$ 15,874	$ 16,473	$ 11,940
Adjustments to reconcile net income to net cash provided by operating activities:
Net cash provided by operating activities	27,446	18,048	13,803
Investing Activities
Net cash utilized by investing activities	(168,735)	(153,206)	(114,021)
Financing activities
Issuance of subordinated debt, net of issuance cost		24,418
Payoff of subordinated debt		(10,000)
Common stock dividends paid	(3,691)	(3,452)	(3,286)
Net cash (utilized) provided by financing activities	16,493	217,331	166,495
Net (decrease) increase in cash and cash equivalents	(124,796)	82,173	66,277
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Net income	15,874	16,473	11,940
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed net income of subsidiary	(13,129)	(13,656)	(8,987)
Other	(245)	63	(25)
Net cash provided by operating activities	2,500	2,880	2,928
Investing Activities
Investment in bank		(9,433)
Net cash utilized by investing activities		(9,433)
Financing activities
Issuance of subordinated debt, net of issuance cost		24,418
Payoff of subordinated debt		(10,000)
Common stock dividends paid	(3,691)	(3,452)	(3,286)
Proceeds from issuance of common stock	222	31	53
Net cash (utilized) provided by financing activities	(3,469)	10,997	(3,233)
Net (decrease) increase in cash and cash equivalents	(969)	4,444	(305)
Cash and cash equivalents, beginning of period	6,412	1,968	2,273
Cash and cash equivalents, end of period	$ 5,443	$ 6,412	$ 1,968