Condensed Consolidated Statements of Stockholder's Equity (Deficit) (USD $) In Thousands	Total	Preferred Stock [Member]	Preferred Stock [Member] Series A Preferred Stock [Member]	Preferred Stock [Member] Series A Preferred Conversion [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Series A Preferred Conversion [Member]	Deficit Accumulated During Development Stage [Member]
Beginning Balance at Sep. 14, 2005	$ 0	$ 0			$ 0	$ 0		$ 0
Beginning Balance, Shares at Sep. 14, 2005		0			0
Capital contributed	1					1
Net loss	(76)							(76)
Ending Balance at Dec. 31, 2005	(75)	0			0	1		(76)
Ending Balance, Shares at Dec. 31, 2005		0			0
Capital contributed	1,504				11	1,493
Capital contributed, Shares					11,256
Net loss	(1,060)							(1,060)
Ending Balance at Dec. 31, 2006	369	0			11	1,494		(1,136)
Ending Balance, Shares at Dec. 31, 2006		0			11,256
Capital contributed	5,093				5	5,088
Capital contributed, Shares					4,837
Net loss	(3,041)							(3,041)
Ending Balance at Dec. 31, 2007	2,421	0			16	6,582		(4,177)
Ending Balance, Shares at Dec. 31, 2007		0			16,093
Issuance of common shares as repayment of stockholder note per share	10					10
Issuance of common shares as repayment of stockholder note per share, Shares					8
Issuance of common shares in private offering per share, net of offering costs	3,988				2	3,986
Issuance of common shares in private offering per share, net of offering costs, Shares					1,862
Stock-based compensation	239					239
Net loss	(5,185)							(5,185)
Ending Balance at Dec. 31, 2008	1,473	0			18	10,817		(9,362)
Ending Balance, Shares at Dec. 31, 2008		0			17,963
Issuance of Series A Preferred Stock per share	1,982		20			1,962
Issuance of Series A Preferred Stock per share, Shares			2,000
Fair value of beneficial conversion feature of Series A Preferred Stock	200					200
Deemed dividend to Series A Preferred Stockholders, charged to additional paid-in capital in the absence of retained earnings	(200)					(200)
Stock-based compensation	195					195
Net loss	(2,366)							(2,366)
Ending Balance at Dec. 31, 2009	1,284	20			18	12,974		(11,728)
Ending Balance, Shares at Dec. 31, 2009		2,000			17,963
Issuance of Series A Preferred Stock per share	1,998		20			1,978
Issuance of Series A Preferred Stock per share, Shares			2,000
Fair value of beneficial conversion feature of Series A Preferred Stock	500					500
Deemed dividend to Series A Preferred Stockholders, charged to additional paid-in capital in the absence of retained earnings	(500)					(500)
Issuance of common shares in private offering per share, net of offering costs	4,974				5	4,969
Issuance of common shares in private offering per share, net of offering costs, Shares					4,978
Conversion of 4,000 shares of Series A Preferred Stock and accumulated dividends into 4,366 shares of Common Stock in September 2010				(40)	4	36
Conversion of 4,000 shares of Series A Preferred Stock and accumulated dividends into 4,366 shares of Common Stock in September 2010, Shares				(4,000)	4,366
Issuance of 697 shares of Common Stock as Consideration Shares in September 2010					1	(1)
Issuance of 697 shares of Common Stock as Consideration Shares in September 2010, Shares					697
Intrinsic value of 5,063 aggregate shares of Common Stock issued on conversion of Series A Preferred Stock	4,301					4,301
Dividend paid to Series A Preferred Stockholders on conversion, charged to additional paid-in capital in the absence of retained earnings	(4,301)						(4,301)
Stock-based compensation	471					471
Net loss	(5,303)							(5,303)
Ending Balance at Dec. 31, 2010	3,424	0			28	20,427		(17,031)
Ending Balance, Shares at Dec. 31, 2010		0			28,004
Stock-based compensation	142					142
Net loss	(2,657)							(2,657)
Ending Balance at Jun. 30, 2011	$ 909	$ 0			$ 28	$ 20,569		$ (19,688)
Ending Balance, Shares at Jun. 30, 2011		0			28,004