13. Regulatory Matters (Summary Of Actual Capital Amounts And Ratios) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
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]
Total Capital (to risk weighted assets), Actual Amount	$ 146,096	$ 144,202
Tier I Capital (to risk weighted assets), Actual Amount	127,490	122,918
Tier I Capital (to average assets), Actual Amount	127,490	122,918
Total Capital (to risk weighted assets), Actual Ratio	14.20%	14.50%
Tier I Capital (to risk weighted assets), Actual Ratio	12.40%	12.40%
Tier I Capital (to average assets), Actual Ratio	9.00%	8.90%
Total Capital (to risk weighted assets), Minimum Required Regulatory Capital, Amount	82,556	79,638
Tier I Capital (to risk weighted assets), Minimum Required Regulatory Capital, Amount	41,278	39,499
Tier I Capital (to average assets), Minimum Required Regulatory Capital, Amount	56,474	55,151
Total Capital (to risk weighted assets), Minimum Required Regulatory Capital, Ratio	8.00%	8.00%
Tier I Capital (to risk weighted assets), Minimum Required Regulatory Capital, Ratio	4.00%	4.00%
Tier I Capital (to average assets), Minimum Required Regulatory Capital, Ratio	4.00%	4.00%
Total Capital (to risk weighted assets), To be Well Capitalized under Prompt Corrective Action Provisions, Amount	103,195	99,547
Tier I Capital (to risk weighted assets), To be Well Capitalized under Prompt Corrective Action Provisions, Amount	61,917	59,248
Tier I Capital (to average assets), To be Well Capitalized under Prompt Corrective Action Provisions, Amount	70,592	68,938
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), To be Well Capitalized under Prompt Corrective Action Provisions, Ratio	6.00%	6.00%
Tier I Capital (to average assets), To be Well Capitalized under Prompt Corrective Action Provisions, Ratio	5.00%	5.00%
Summit Community [Member]
Total Capital (to risk weighted assets), Actual Amount	160,462	156,473
Tier I Capital (to risk weighted assets), Actual Amount	149,456	143,989
Tier I Capital (to average assets), Actual Amount	149,456	143,989
Total Capital (to risk weighted assets), Actual Ratio	15.60%	15.70%
Tier I Capital (to risk weighted assets), Actual Ratio	14.50%	14.50%
Tier I Capital (to average assets), Actual Ratio	10.60%	10.40%
Total Capital (to risk weighted assets), Minimum Required Regulatory Capital, Amount	82,035	79,627
Tier I Capital (to risk weighted assets), Minimum Required Regulatory Capital, Amount	41,281	39,814
Tier I Capital (to average assets), Minimum Required Regulatory Capital, Amount	56,452	55,150
Total Capital (to risk weighted assets), Minimum Required Regulatory Capital, Ratio	8.00%	8.00%
Tier I Capital (to risk weighted assets), Minimum Required Regulatory Capital, Ratio	4.00%	4.00%
Tier I Capital (to average assets), Minimum Required Regulatory Capital, Ratio	4.00%	4.00%
Total Capital (to risk weighted assets), To be Well Capitalized under Prompt Corrective Action Provisions, Amount	102,543	99,534
Tier I Capital (to risk weighted assets), To be Well Capitalized under Prompt Corrective Action Provisions, Amount	61,922	59,720
Tier I Capital (to average assets), To be Well Capitalized under Prompt Corrective Action Provisions, Amount	$ 70,565	$ 68,938
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), To be Well Capitalized under Prompt Corrective Action Provisions, Ratio	6.00%	6.00%
Tier I Capital (to average assets), To be Well Capitalized under Prompt Corrective Action Provisions, Ratio	5.00%	5.00%