Summary of Significant Accounting and Reporting Policies (Schedule Of Allowance For Doubtful Accounts) (Details) - Allowance for Doubtful Accounts - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Activity in the Company’s allowance for doubtful accounts
Beginning Balance	$ 2,711,248	$ 3,202,388	$ 3,400,000
Net Additions/ (Reductions) to Costs and Expenses	0	(300,000)	0
Deductions and Other Adjustments	(47,771)	(191,140)	(197,612)
Ending Balance	$ 2,663,477	$ 2,711,248	$ 3,202,388