Investments In Securities (Schedule Of Gross Realized Gains And Losses On Securities) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Schedule of Available-for-sale Securities [Line Items]
Total, Gross realized gains			$ 945,563	$ 891,955
Total, Gross realized losses			(24,700)	(58,319)
Net realized gain from securities			920,863	833,636
Impairments of other investments			0	(10,062)
Gain on other investments			19,104	26,234
Loss On Other Investments			0	(265,589)
Total			19,104	(249,417)
Net realized gain on investments	$ 925,164	$ 92,082	939,967	584,219
General Obligations Of U.S. States, Territories And Political Subdivisions
Schedule of Available-for-sale Securities [Line Items]
Total, Gross realized losses			(12,319)	0
Issuer Obligations Of U S States Territories And Political Subdivisions Special Revenue [Member]
Schedule of Available-for-sale Securities [Line Items]
Total, Gross realized losses			(398)	0
Corporate Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Total, Gross realized gains			999	0
Common Stocks And Nonredeemable Preferred Stocks
Schedule of Available-for-sale Securities [Line Items]
Total, Gross realized gains			944,564	891,955
Total, Gross realized losses			(834)	(58,319)
Impairments of Debt And Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Total, Gross realized losses			$ (11,149)	$ 0