Real Estate Securities and Other Investment Securities (Parenthetical Information Regarding Real Estate Securities) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Interest-Only Securities [Member]	Dec. 31, 2013 Interest-Only Securities [Member]
Investment Holdings [Line Items]
Principal or Notional Balance					$ 55,800,000	$ 64,300,000
Change in unrealized gain or loss on real estate securities	1,548,195	(15,642,642)	4,284,253	(14,739,365)
Change in unrealized gain or loss on other investment securities	$ 905,862		$ 1,276,626