Summary Of Significant Accounting And Reporting Policies (Schedule Of Unrealized Losses On Investments) (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Accounting Policies [Abstract]
Aggregate Unrealized Losses, Less than one year	$ 688,728	$ 2,578,990
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	$ 22,887,686	$ 42,845,635