NOTE 11 - BENEFITS (Details Narrative) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Retirement Benefits [Abstract]
Salisbury's 401(k) Plan expense	$ 253,000	$ 229,000	$ 847,000	$ 667,000
Salisbury's ESOP expense	55,000	56,000	184,000	170
Total liability for endorsement split-dollar life insurance arrangements included in other liabilities	1,031,000		1,031,000		$ 771,000
Other post-retirement benefit obligation expense (credit) for endorsement split dollar life insurance arrangement	86,000	(32,000)	259,000	7,000
Expenses related to Non-Qualified Deferred Compensation Plan	$ 29,000	$ 33,000	$ 86,000	$ 100,000