Concentration Of Credit Risk (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Concentration Risk [Line Items]
Retained Recourse Obligation For Events Of Default Under Contracts	$ 4,518,000
Events of Default Under Contract by Third Party	43,823,000
Guarantee Obligation Liability	$ 153,000
Roll-out of the Second Round of NCB, Number of Additional Metropolitan Statistical Areas Becoming Effective	91 additional metropolitan statistical areas
Concentration Risk, Single Customer, Percentage	3.50%
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Number of Customers Used For Concentration Risk Disclosure	10
Concentration Risk, Percentage	18.10%
Minimum Number Of Major Customers That If Lost Would Have Significant Impact On Company	1
Concentration Risk, Single Customer, Percentage	3.50%