Summary Of Significant Accounting Policies (Schedule Of Percentage Of Company's Total Revenues) (Details)

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Summary Of Significant Accounting Policies (Schedule Of Percentage Of Company's Total Revenues) (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Georgia [Member]
Percentage of revenues under contracts or subcontracts			15.00%
Ohio [Member]
Percentage of revenues under contracts or subcontracts			12.00%
Texas [Member]
Percentage of revenues under contracts or subcontracts	37.00%	40.00%	21.00%