Significant Accounting Policies (Schedule Of Property, Plant And Equipment Useful Life) (Details)	9 Months Ended
	Sep. 30, 2014
Transportation Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment useful life	5 years
Minimum [Member] | Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment useful life	3 years
Minimum [Member] | Furniture And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment useful life	5 years
Minimum [Member] | Computer Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment useful life	5 years
Maximum [Member] | Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment useful life	5 years
Maximum [Member] | Furniture And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment useful life	7 years
Maximum [Member] | Computer Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment useful life	10 years