CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (USD $) In Thousands, except Share data		Total	Common Stock		Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive income (loss)	Noncontrolling Interest.
Balance at Dec. 31, 2009		$ 18,558	$ 32	[1]	$ 37,854	$ (20,276)	$ 154	$ 794
Balance (in shares) at Dec. 31, 2009	[1]		3,238,615
Increase (Decrease) in Stockholders' Equity
Purchase of El Quevar noncontrolling interest		(19)	4	[1]	771			(794)
Purchase of El Quevar noncontrolling interest (in shares)	[1]		400,000
Private placements, net		34,622	30	[1]	34,592
Private placements, net (in shares)	[1]		2,939,790
Public offerings, net		108,836	83	[1]	108,753
Public offerings, net (in shares)	[1]		8,315,484
Stock compensation accrued, net		3,281	3	[1]	3,278
Stock compensation accrued, net (in shares)	[1]		255,750
Treasury shares acquired and retired		(197)			(197)
Treasury shares acquired and retired (in shares)	[1]		(25,072)
Unrealized loss on marketable equity securities		11					11
Net loss		(33,274)				(33,274)
Balance at Dec. 31, 2010		131,818	152	[1]	185,051	(53,550)	165
Balance (in shares) at Dec. 31, 2010	[1]		15,124,567
Increase (Decrease) in Stockholders' Equity
Stock compensation accrued, net		5,328			5,328
Stock compensation accrued, net (in shares)	[1]		326,166
Treasury shares acquired and retired		(1,834)			(1,834)
Treasury shares acquired and retired (in shares)	[1]		(106,056)
Warrants exercised			1	[1]	(1)
Warrants exercised (in shares)	[1]		104,889
Shares issued to ECU shareholders and an ECU officer		224,675	161	[1]	224,514
Shares issued to ECU shareholders and an ECU officer (in shares)	[1]		16,117,319
ECU replacement options and warrants		9,853			9,853
Unrealized loss on marketable equity securities		(309)					(309)
Net loss		(46,260)				(46,260)
Balance at Sep. 30, 2011		$ 323,271	$ 314	[1]	$ 422,911	$ (99,810)	$ (144)	$ 0
Balance (in shares) at Sep. 30, 2011	[1]		31,566,885

[1] Additional common stock was issued in a private placement completed in October 2011; see Note 20.