Annual report pursuant to Section 13 and 15(d)

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%