CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)	Total	COMMON STOCK	ADDITIONAL PAID-IN CAPITAL	RETAINED EARNINGS (DEFICIT)	TREASURY STOCK
BALANCE at Dec. 31, 2009	$ 182,730,888	$ 38,578	$ 209,738,513	$ (26,661,891)	$ (384,312)
BALANCE (in shares) at Dec. 31, 2009		38,516,658
Increase (Decrease) in Stockholders' Equity
Current year net loss	(30,844,897)			(30,844,897)
Share-based compensation	1,857,145	374	1,856,771
Share-based compensation (in shares)		374,201
Common stock issuance	29,899,465	6,000	29,893,465
Common stock issuance (in shares)		6,000,000
Treasury stock	(111,630)				(111,630)
Treasury stock (in shares)		(33,600)
BALANCE at Dec. 31, 2010	183,530,971	44,952	241,488,749	(57,506,788)	(495,942)
BALANCE (in shares) at Dec. 31, 2010		44,857,259
Increase (Decrease) in Stockholders' Equity
Current year net loss	(15,845,382)			(15,845,382)
Share-based compensation	1,996,447	319	1,996,128
Share-based compensation (in shares)		318,363
Treasury stock	(176,338)				(176,338)
Treasury stock (in shares)		(46,215)
BALANCE at Dec. 31, 2011	169,505,698	45,271	243,484,877	(73,352,170)	(672,280)
BALANCE (in shares) at Dec. 31, 2011	45,129,407	45,129,407
Increase (Decrease) in Stockholders' Equity
Current year net loss	(91,991,355)			(91,991,355)
Share-based compensation	2,524,052	988	2,523,064
Share-based compensation (in shares)		988,241
Treasury stock	(196,278)				(196,278)
Treasury stock (in shares)		(53,826)
BALANCE at Dec. 31, 2012	$ 79,842,117	$ 46,259	$ 246,007,941	$ (165,343,525)	$ (868,558)
BALANCE (in shares) at Dec. 31, 2012	46,063,822	46,063,822