Regulatory Matters (Summary Of Actual Capital Amounts And Ratios) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital (to risk weighted assets), Minimum Required Regulatory Capital, Ratio	11.00%
Tier I Capital (to average assets), Minimum Required Regulatory Capital, Ratio	8.00%
Summit [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital (to risk weighted assets), Actual Amount	$ 149,309	$ 144,202
Total Capital (to risk weighted assets), Actual Ratio	14.30%	14.50%
Total Capital (to risk weighted assets), Minimum Required Regulatory Capital, Amount	83,530	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	104,412	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	130,668	122,918
Tier I Capital (to risk weighted assets), Actual Ratio	12.50%	12.40%
Tier I Capital (to risk weighted assets), Minimum Required Regulatory Capital, Amount	41,814	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	62,721	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	130,668	122,918
Tier I Capital (to average assets), Actual Ratio	9.20%	8.90%
Tier I Capital (to average assets), Minimum Required Regulatory Capital, Amount	56,812	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	71,015	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	161,116	156,473
Total Capital (to risk weighted assets), Actual Ratio	15.50%	15.70%
Total Capital (to risk weighted assets), Minimum Required Regulatory Capital, Amount	83,157	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	103,946	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	150,075	143,989
Tier I Capital (to risk weighted assets), Actual Ratio	14.40%	14.50%
Tier I Capital (to risk weighted assets), Minimum Required Regulatory Capital, Amount	41,688	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	62,531	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	150,075	143,989
Tier I Capital (to average assets), Actual Ratio	10.50%	10.40%
Tier I Capital (to average assets), Minimum Required Regulatory Capital, Amount	57,171	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	$ 71,464	$ 68,938
Tier I Capital (to average assets), To be Well Capitalized under Prompt Corrective Action Provisions, Ratio	5.00%	5.00%