DERIVATIVE INSTRUMENTS HEDGING AND NON-HEDGING ACTIVITIES (Details 3) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest rate:
Amount of realized gain (loss)	$ (1,217,392)	$ (849,826)	$ (4,047,878)	$ (1,692,593)
Amount of unrealized appreciation (depreciation)	902,032	(5,968,542)	(849,006)	(11,100,869)
Total	(315,360)	(6,818,368)	(4,896,884)	(12,793,462)
Interest Rate Swaps [Member]
Interest rate:
Amount of realized gain (loss)	(900,671)	(765,826)	(1,421,593)	(1,142,140)
Amount of unrealized appreciation (depreciation)	776,847	(4,807,659)	(1,095,827)	(9,036,957)
Total	(123,824)	(5,573,485)	(2,517,420)	(10,179,097)
Swaptions [Member]
Interest rate:
Amount of realized gain (loss)		(84,000)	(84,000)	(168,000)
Amount of unrealized appreciation (depreciation)		(467,598)	62,450	(1,148,003)
Total		(551,598)	(21,550)	(1,316,003)
Futures [Member]
Interest rate:
Amount of realized gain (loss)	(316,721)	0	(2,542,285)	(191,047)
Amount of unrealized appreciation (depreciation)	125,185	(693,285)	184,371	(847,550)
Total	$ (191,536)	$ (693,285)	$ (2,357,914)	(1,038,597)
TBAs [Member]
Interest rate:
Amount of realized gain (loss)				(191,406)
Amount of unrealized appreciation (depreciation)				(68,359)
Total				$ (259,765)