SHAREHOLDERS' EQUITY - Regulatory capital position and minimum capital requirements (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Actual
Salisbury, Amount	$ 64,281	$ 63,391
Salisbury, Ratio	16.47%	16.63%
Bank, Amount	54,097	53,132
Bank, Ratio	13.71%	13.77%
Salisbury, Amount	59,433	58,933
Salisbury, Ratio	15.23%	15.46%
Bank, Amount	49,248	48,674
Bank, Ratio	12.48%	12.62%
Salisbury, Amount	59,433	58,933
Salisbury, Ratio	10.17%	9.87%
Bank, Amount	49,248	48,674
Bank, Ratio	8.43%	8.15%
For Capital Adequacy Purposes
Salisbury, Amount	31,228	30,494
Salisbury, Ratio	8.00%	8.00%
Bank, Amount	31,559	30,866
Bank, Ratio	8.00%	8.00%
Salisbury, Amount	15,614	15,247
Salisbury, Ratio	4.00%	4.00%
Bank, Amount	15,780	15,432
Bank, Ratio	4.00%	4.00%
Salisbury, Amount	23,372	23,876
Salisbury, Ratio	4.00%	4.00%
Bank, Amount	23,372	23,876
Bank, Ratio	4.00%	4.00%
To be Well Capitalized Under Prompt Corrective Action Provisions
Salisbury, Amount
Salisbury, Ratio
Bank, Amount	39,449	38,582
Bank, Ratio	10.00%	10.00%
Salisbury, Amount
Salisbury, Ratio
Bank, Amount	23,669	23,149
Bank, Ratio	6.00%	6.00%
Salisbury, Amount
Salisbury, Ratio
Bank, Amount	$ 29,215	$ 29,845
Bank, Ratio	5.00%	5.00%