SALISBURY BANCORP (PARENT ONLY) CONDENSED FINANCIAL INFORMATION - Unconsolidated statements of cash flows of Salisbury Bancorp, Inc. (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net income	$ 11,136	$ 8,824	$ 6,256
Adjustments to reconcile net income to net cash provided by operating activities:
Net cash provided by operating activities	14,330	13,277	10,207
Investing Activities
Net cash utilized by investing activities	(23,375)	(118,142)	(9,903)
Financing Activities
Common stock dividends paid	(3,155)	(3,133)	(3,113)
Net cash (utilized) by financing activities	(22,515)	114,824	12,697
Net increase (decrease) in cash and cash equivalents	(31,560)	9,959	13,001
Salisbury Bancorp, Inc. (Parent Only)
Net income	11,136	8,824	6,256
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed net income of subsidiary	(8,369)	(6,088)	(3,290)
Other	474	(239)	(410)
Net cash provided by operating activities	3,241	2,497	2,556
Investing Activities
Investment in bank
Net cash utilized by investing activities
Financing Activities
Common stock dividends paid	(3,155)	(3,133)	(3,113)
Proceeds from issuance of common stock	82	222	395
Net cash (utilized) by financing activities	(3,073)	(2,911)	(2,718)
Net increase (decrease) in cash and cash equivalents	168	(414)	(162)
Cash and cash equivalents, beginning of period	2,105	2,519	2,681
Cash and cash equivalents, end of period	$ 2,273	$ 2,105	$ 2,519