SALISBURY BANCORP (PARENT ONLY) CONDENSED FINANCIAL INFORMATION - Unconsolidated balance sheets of Salisbury Bancorp, Inc. (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Assets
Cash and due from banks	$ 7,238	$ 9,357
Other assets	2,635	2,771
Total Assets	1,121,554	986,984
Liabilities and Shareholders' Equity
Subordinated debt	9,835	9,811
Shareholders' equity	103,459	97,514	$ 94,007	$ 90,574
Total Liabilities and Shareholders' Equity	1,121,554	986,984
Salisbury Bancorp, Inc. (Parent Only)
Assets
Cash and due from banks	2,105	2,519
Investment in bank subsidiary	110,525	104,404
Other assets	689	430
Total Assets	113,319	107,353
Liabilities and Shareholders' Equity
Subordinated debt	9,835	9,811
Other liabilities	25	28
Shareholders' equity	103,459	97,514
Total Liabilities and Shareholders' Equity	$ 113,319	$ 107,353