Consolidated Statements of Comprehensive Income (Loss) (Current Period Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net loss	$ (3,039,067)	$ (23,106,239)	$ (1,664,797)	$ (40,539,768)
Other comprehensive income:
Change in unrealized gain/(loss) on investment	2,165,450	(514,508)	2,165,450	(760,842)
Realized loss on investment			765,609
Net unrealized gain on derivatives	763,264	1,822,164	1,586,486	3,262,494
Total other comprehensive income	2,928,714	1,307,656	4,517,545	2,501,652
Comprehensive (loss) income	$ (110,353)	$ (21,798,583)	$ 2,852,748	$ (38,038,116)