Regulatory Matters (Summary Of Actual Capital Amounts And Ratios) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Summit [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital (to risk weighted assets), Actual Amount	$ 158,196	$ 144,202
Total Capital (to risk weighted assets), Actual Ratio	14.90%	14.50%
Total Capital (to risk weighted assets), Minimum Required Regulatory Capital, Amount	84,937	79,638
Total Capital (to risk weighted assets), Minimum Required Regulatory Capital, Ratio	8.00%	8.00%
Total Capital (to risk weighted assets), To be Well Capitalized under Prompt Corrective Action Provisions, Amount	106,172	99,547
Total Capital (to risk weighted assets), To be Well Capitalized under Prompt Corrective Action Provisions, Ratio	10.00%	10.00%
Tier I Capital (to risk weighted assets ), Actual Amount	141,589	122,918
Tier I Capital (to risk weighted assets), Actual Ratio	13.30%	12.40%
Tier I Capital (to risk weighted assets), Minimum Required Regulatory Capital, Amount	42,583	39,499
Tier I Capital (to risk weighted assets), Minimum Required Regulatory Capital, Ratio	4.00%	4.00%
Tier I Capital (to risk weighted assets), To be Well Capitalized under Prompt Corrective Action Provisions, Amount	63,875	59,248
Tier I Capital (to risk weighted assets), To be Well Capitalized under Prompt Corrective Action Provisions, Ratio	6.00%	6.00%
Tier I Capital (to average assets), Actual Amount	141,589	122,918
Tier I Capital (to average assets), Actual Ratio	9.90%	8.90%
Tier I Capital (to average assets), Minimum Required Regulatory Capital, Amount	57,208	55,151
Tier I Capital (to average assets), Minimum Required Regulatory Capital, Ratio	4.00%	4.00%
Tier I Capital (to average assets), To be Well Capitalized under Prompt Corrective Action Provisions, Amount	71,510	68,938
Tier I Capital (to average assets), To be Well Capitalized under Prompt Corrective Action Provisions, Ratio	5.00%	5.00%
Summit Community [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital (to risk weighted assets), Actual Amount	161,820	156,473
Total Capital (to risk weighted assets), Actual Ratio	15.30%	15.70%
Total Capital (to risk weighted assets), Minimum Required Regulatory Capital, Amount	84,612	79,627
Total Capital (to risk weighted assets), Minimum Required Regulatory Capital, Ratio	8.00%	8.00%
Total Capital (to risk weighted assets), To be Well Capitalized under Prompt Corrective Action Provisions, Amount	105,765	99,534
Total Capital (to risk weighted assets), To be Well Capitalized under Prompt Corrective Action Provisions, Ratio	10.00%	10.00%
Tier I Capital (to risk weighted assets ), Actual Amount	150,653	143,989
Tier I Capital (to risk weighted assets), Actual Ratio	14.20%	14.50%
Tier I Capital (to risk weighted assets), Minimum Required Regulatory Capital, Amount	42,437	39,814
Tier I Capital (to risk weighted assets), Minimum Required Regulatory Capital, Ratio	4.00%	4.00%
Tier I Capital (to risk weighted assets), To be Well Capitalized under Prompt Corrective Action Provisions, Amount	63,656	59,720
Tier I Capital (to risk weighted assets), To be Well Capitalized under Prompt Corrective Action Provisions, Ratio	6.00%	6.00%
Tier I Capital (to average assets), Actual Amount	150,653	143,989
Tier I Capital (to average assets), Actual Ratio	10.60%	10.40%
Tier I Capital (to average assets), Minimum Required Regulatory Capital, Amount	56,850	55,150
Tier I Capital (to average assets), Minimum Required Regulatory Capital, Ratio	4.00%	4.00%
Tier I Capital (to average assets), To be Well Capitalized under Prompt Corrective Action Provisions, Amount	$ 71,063	$ 68,938
Tier I Capital (to average assets), To be Well Capitalized under Prompt Corrective Action Provisions, Ratio	5.00%	5.00%