SHAREHOLDERS' EQUITY - Actual regulatory capital position and minimum capital requirements (Details) - Salisbury - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Total Capital (to risk-weighted assets)
Actual - Amount	$ 114,421	$ 104,013
Actual - Ratio	12.84%	12.09%
Minimum Capital Required For Capital Adequacy - Amount	$ 71,278	$ 68,848
Minimum Capital Required For Capital Adequacy - Ratio	8.00%	8.00%
Minimum Capital Required For Capital Adequacy Plus Required Capital Conservation Buffer - Amount	$ 93,553	$ 90,362
Minimum Capital Required For Capital Adequacy Plus Required Capital Conservation Buffer - Ratio	10.50%	10.50%
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions - Amount	$ 89,098	$ 86,059
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions - Ratio	10.00%	10.00%
Tier 1 Capital (to risk-weighted assets)
Actual - Amount	$ 105,430	$ 96,092
Actual - Ratio	11.83%	11.17%
Minimum Capital Required For Capital Adequacy - Amount	$ 53,459	$ 51,636
Minimum Capital Required For Capital Adequacy - Ratio	6.00%	6.00%
Minimum Capital Required For Capital Adequacy Plus Required Capital Conservation Buffer - Amount	$ 75,733	$ 73,150
Minimum Capital Required For Capital Adequacy Plus Required Capital Conservation Buffer - Ratio	8.50%	8.50%
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions - Amount	$ 71,278	$ 68,848
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions - Ratio	8.00%	8.00%
Common Equity Tier 1 Capital (to risk-weighted assets)
Actual - Amount	$ 105,430	$ 96,092
Actual - Ratio	11.83%	11.17%
Minimum Capital Required For Capital Adequacy - Amount	$ 40,094	$ 38,727
Minimum Capital Required For Capital Adequacy - Ratio	4.50%	4.50%
Minimum Capital Required For Capital Adequacy Plus Required Capital Conservation Buffer - Amount	$ 62,368	$ 60,242
Minimum Capital Required For Capital Adequacy Plus Required Capital Conservation Buffer - Ratio	7.00%	7.00%
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions - Amount	$ 57,914	$ 55,939
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions - Ratio	6.50%	6.50%
Tier 1 Capital (to average assets)
Actual - Amount	$ 105,430	$ 96,092
Actual - Ratio	9.60%	8.83%
Minimum Capital Required For Capital Adequacy - Amount	$ 43,944	$ 43,527
Minimum Capital Required For Capital Adequacy - Ratio	4.00%	4.00%
Minimum Capital Required For Capital Adequacy Plus Required Capital Conservation Buffer - Amount	$ 43,944	$ 43,527
Minimum Capital Required For Capital Adequacy Plus Required Capital Conservation Buffer - Ratio	4.00%	4.00%
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions - Amount	$ 54,930	$ 54,409
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions - Ratio	5.00%	5.00%