Statements of Stockholders' Equity and Comprehensive Income (Loss) (USD $)	Total	Common Stock [Member]	Preferred Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income [Member]
Balance, value at Oct. 17, 2005	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Balance, shares at Oct. 17, 2005		0	0
Proceeds from sale of common stock (11/05 @ $.04 per share), shares		972,000
Proceeds from sale of common stock (11/05 @ $.04 per share), value	38,880	97		38,783
Founders stock	933,120			933,120
Stock based compensation	26,004			26,004
Components of comprehensive loss
Net loss	(1,207,234)				(1,207,234)
Balance, value at Dec. 31, 2005	(209,230)	97		997,907	(1,207,234)
Balance, shares at Dec. 31, 2005		972,000
Transfer of assets at historical cost (1/06 @ $0.03 per share), shares		1,028,000
Transfer of assets at historical cost (1/06 @ $0.03 per share), value	31,200	103		31,097
Proceeds from IPO (7/06 @ $5.50 per unit), shares		3,000,000
Proceeds from IPO (7/06 @ $5.50 per unit), value	16,500,000	300		16,499,700
IPO costs	(2,392,071)			(2,392,071)
Stock issued to bridge loan lenders (7/06 @ $2.75 per share), shares		290,894
Stock issued to bridge loan lenders (7/06 @ $2.75 per share), value	800,000	29		799,971
Exercise of stock options, shares		31,200
Exercise of stock options, value	3,120	3		3,117
Stock based compensation	348,943			348,943
Components of comprehensive loss
Net loss	(4,180,912)				(4,180,912)
Balance, value at Dec. 31, 2006	10,901,050	532		16,288,664	(5,388,146)
Balance, shares at Dec. 31, 2006		5,322,094
Exercise of stock options, shares		169,963
Exercise of stock options, value	346,434	17		346,417
Conversion of Class A public warrants at $6.60 per share, shares		3,098,382
Conversion of Class A public warrants at $6.60 per share, value	20,449,321	310		20,449,011
Redemption of Class A public warrants at $0.25 per share	(48,128)			(48,128)
Conversion of Class B public warrants at $11.00, shares		11,000
Conversion of Class B public warrants at $11.00, value	121,000	1		120,999
Stock based compensation	1,734,879			1,734,879
Proceeds from private placement:
Common stock, shares		2,534,462
Common stock, value	15,962,257	254		15,962,003
Class B public warrants	3,754,468			3,754,468
Private placement costs	(75,807)			(75,807)
Exercise of representative's warrants, shares		300,000
Exercise of representative's warrants, value	1,980,000	30		1,979,970
Components of comprehensive loss
Net loss	(6,503,419)				(6,503,419)
Balance, value at Dec. 31, 2007	48,622,055	1,144		60,512,476	(11,891,565)
Balance, shares at Dec. 31, 2007		11,435,901
Exercise of stock options, shares		133,137
Exercise of stock options, value	120,533	13		120,520
Issuance of Restricted Stock, shares		69,846
Issuance of Restricted Stock, value		7		(7)
Conversion of Class B public warrants at $11.00, shares		98,800
Conversion of Class B public warrants at $11.00, value	1,086,800	10		1,086,790
Stock based compensation	1,881,399			1,881,399
Proceeds from private placement:
Common stock, shares		4,763,698
Common stock, value	36,647,693	476		36,647,217
Class B public warrants	6,681,884			6,681,884
Exercise of representative's warrants, shares		75,000
Exercise of representative's warrants, value	495,000	8		494,992
Proceeds from shareholder under Section 16(b)	148,109			148,109
Proceeds from secondary public offering, shares		4,370,000
Proceeds from secondary public offering, value	61,180,000	437		61,179,563
Costs of secondary public offering	(4,361,358)			(4,361,358)
Components of comprehensive loss
Unrealized gain/loss on investments	331,068					331,068
Net loss	(13,215,076)				(13,215,076)
Total comprehensive loss	(12,884,008)
Balance, value at Dec. 31, 2008	139,618,107	2,095		164,391,585	(25,106,641)	331,068
Balance, shares at Dec. 31, 2008		20,946,382
Exercise of stock options, shares		105,169
Exercise of stock options, value	339,616	10		339,606
Issuance of Restricted Stock, shares		147,679
Issuance of Restricted Stock, value		15		(15)
Stock based compensation	2,676,957			2,676,957
Proceeds from private placement:
Common stock, shares		769,230
Common stock, value	4,999,995	77		4,999,918
Proceeds from shareholder under Section 16(b)	0
Proceeds From Public Offering Shares		4,615,385
Proceeds From Public Offering Value	30,000,003	461		29,999,542
Costs of Public Offering	(2,062,866)			(2,062,866)
Components of comprehensive loss
Unrealized gain/loss on investments	(334,080)					(334,080)
Net loss	(20,922,717)				(20,922,717)
Total comprehensive loss	(21,256,797)
Balance, value at Dec. 31, 2009	154,315,015	2,658		200,344,727	(46,029,358)	(3,012)
Balance, shares at Dec. 31, 2009		26,583,845
Exercise of stock options, shares		161,330
Exercise of stock options, value	391,001	16		390,985
Issuance of Restricted Stock, shares		270,412
Issuance of Restricted Stock, value		27		(27)
Stock based compensation	2,713,468			2,713,468
Proceeds from private placement:
Proceeds from shareholder under Section 16(b)	0
Proceeds From Public Offering Shares		5,250,000
Proceeds From Public Offering Value	21,787,500	525		21,786,975
Costs of Public Offering	(1,409,937)			(1,409,937)
Components of comprehensive loss
Unrealized gain/loss on investments	2,786					2,786
Net loss	(31,233,718)				(31,233,718)
Total comprehensive loss	(31,230,932)
Balance, value at Dec. 31, 2010	146,566,115	3,226		223,826,191	(77,263,076)	(226)
Balance, shares at Dec. 31, 2010		32,265,587
Exercise of stock options, shares		57,000
Exercise of stock options, value	5,700	6		5,694
Issuance of Restricted Stock, shares		191,822
Issuance of Restricted Stock, value		19		(19)
Issuance Of Commons Stock To Service Provider Shares		45,000
Issuance Of Common Stock To Service Provider, Value	58,950	5		58,945
Stock based compensation	1,572,607			1,572,607
Proceeds from private placement:
Common stock, shares		6,400,000
Proceeds from private offering, value	7,360,000	640		7,359,360
Private placement costs	(123,973)			(123,973)
Stock Issued During Period Shares At-the-Market Offering		386,050
Proceeds from At-the-Market Offering, value	305,784	39		305,745
Proceeds from shareholder under Section 16(b)	0
Components of comprehensive loss
Unrealized gain/loss on investments	1,245					1,245
Net loss	(105,743,860)				(105,743,860)
Total comprehensive loss	(105,742,615)
Balance, value at Dec. 31, 2011	$ 50,002,568	$ 3,935		$ 233,004,550	$ (183,006,936)	$ 1,019
Balance, shares at Dec. 31, 2011		39,345,459