SHAREHOLDERS' EQUITY - Actual regulatory capital position and minimum capital requirements (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Salisbury
Total Capital (to risk-weighted assets)
Actual - Amount	$ 97,802	$ 96,166
Actual - Ratio	13.10%	13.26%
For Capital Adequacy - Amount	$ 59,725	$ 57,997
For Capital Adequacy - Ratio	8.00%	8.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions - Amount
To Be Well Capitalized Under Prompt Corrective Action Provisions - Ratio
Tier 1 Capital (to risk-weighted assets)
Actual - Amount	$ 81,150	$ 79,868
Actual - Ratio	10.87%	11.02%
For Capital Adequacy - Amount	$ 44,794	$ 43,498
For Capital Adequacy - Ratio	6.00%	6.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions - Amount
To Be Well Capitalized Under Prompt Corrective Action Provisions - Ratio
Common Equity Tier 1 Capital (to risk-weighted assets)
Actual - Amount	$ 81,150	$ 79,868
Actual - Ratio	10.87%	11.02%
For Capital Adequacy - Amount	$ 33,595	$ 32,623
For Capital Adequacy - Ratio	4.50%	4.50%
To Be Well Capitalized Under Prompt Corrective Action Provisions - Amount
To Be Well Capitalized Under Prompt Corrective Action Provisions - Ratio
Tier 1 Capital (to average assets)
Actual - Amount	$ 81,150	$ 79,868
Actual - Ratio	8.77%	8.69%
For Capital Adequacy - Amount	$ 37,013	$ 37,282
For Capital Adequacy - Ratio	4.00%	4.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions - Amount
To Be Well Capitalized Under Prompt Corrective Action Provisions - Ratio
Bank
Total Capital (to risk-weighted assets)
Actual - Amount		$ 93,690	$ 94,815
Actual - Ratio		12.92%	12.70%
For Capital Adequacy - Amount		$ 57,996	$ 59,724
For Capital Adequacy - Ratio		8.00%	8.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions - Amount		$ 72,495	$ 74,655
To Be Well Capitalized Under Prompt Corrective Action Provisions - Ratio		10.00%	10.00%
Tier 1 Capital (to risk-weighted assets)
Actual - Amount		$ 87,392	$ 88,163
Actual - Ratio		12.05%	11.81%
For Capital Adequacy - Amount		$ 43,497	$ 44,793
For Capital Adequacy - Ratio		6.00%	6.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions - Amount		$ 57,996	$ 59,724
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		$ 87,392	$ 88,163
Actual - Ratio		12.05%	11.81%
For Capital Adequacy - Amount		$ 32,623	$ 33,595
For Capital Adequacy - Ratio		4.50%	4.50%
To Be Well Capitalized Under Prompt Corrective Action Provisions - Amount		$ 47,122	$ 48,526
To Be Well Capitalized Under Prompt Corrective Action Provisions - Ratio		6.50%	6.50%
Tier 1 Capital (to average assets)
Actual - Amount		$ 87,392	$ 88,163
Actual - Ratio		9.51%	9.53%
For Capital Adequacy - Amount		$ 37,762	$ 37,007
For Capital Adequacy - Ratio		4.00%	4.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions - Amount		$ 45,953	$ 46,259
To Be Well Capitalized Under Prompt Corrective Action Provisions - Ratio		5.00%	5.00%