Investment and Mortgage-Backed Securities, Available for Sale (Schedule of Held to Maturity Securities, Contractual Maturities) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Investments, Debt and Equity Securities [Abstract]
Available-for-sale Securities, Gross Realized Losses	$ 207,000	$ 0	$ 432,000	$ 0
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Less Than One Year, Amortized Cost	321,151		321,151
One – Five Years, Amortized Cost	12,647,153		12,647,153
Five – Ten Years, Amortized Cost	72,912,189		72,912,189
After Ten Years, Amortized Cost	89,277,109		89,277,109
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis	428,932,644		428,932,644
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Less Than One Year, Fair Value	328,913		328,913
One – Five Years, Fair Value	12,876,501		12,876,501
Five – Ten Years, Fair Value	73,784,671		73,784,671
After Ten Years, Fair Value	90,732,510		90,732,510
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value	$ 436,810,833		$ 436,810,833