Condensed Statements of Shareholders' Equity (Deficit) (Unaudited) (USD $)	Total	Common Stock 0.19 Per Share	Common Stock 0.32 Per Share	Common Stock Issued for Research and Development 0.53 Per Share	Common Stock Issued for Research and Development 0.65 Per Share	Common Stock Issued for Services 0.90 Per Share	Common Stock Issued for Services 1.06 Per Share	Common Stock and Warrants Issued for Cash 1.1 Per Share	Common Stock and Warrants Issued for Cash 2.1 Per Share	Common Stock Issued For License Rights Two Point Four One Per Share	Preferred Stock	Preferred Stock Common Stock 0.19 Per Share	Preferred Stock Common Stock 0.32 Per Share	Preferred Stock Common Stock Issued for Research and Development 0.53 Per Share	Preferred Stock Common Stock Issued for Research and Development 0.65 Per Share	Preferred Stock Common Stock Issued for Services 0.90 Per Share	Preferred Stock Common Stock Issued for Services 1.06 Per Share	Preferred Stock Common Stock and Warrants Issued for Cash 1.1 Per Share	Preferred Stock Common Stock and Warrants Issued for Cash 2.1 Per Share	Preferred Stock Common Stock Issued For License Rights Two Point Four One Per Share	Common Stock	Common Stock Common Stock 0.19 Per Share	Common Stock Common Stock 0.32 Per Share	Common Stock Common Stock Issued for Research and Development 0.53 Per Share	Common Stock Common Stock Issued for Research and Development 0.65 Per Share	Common Stock Common Stock Issued for Services 0.90 Per Share	Common Stock Common Stock Issued for Services 1.06 Per Share	Common Stock Common Stock and Warrants Issued for Cash 1.1 Per Share	Common Stock Common Stock and Warrants Issued for Cash 2.1 Per Share	Common Stock Common Stock Issued For License Rights Two Point Four One Per Share	Additional Paid-in Capital	Additional Paid-in Capital Common Stock 0.19 Per Share	Additional Paid-in Capital Common Stock 0.32 Per Share	Additional Paid-in Capital Common Stock Issued for Research and Development 0.53 Per Share	Additional Paid-in Capital Common Stock Issued for Research and Development 0.65 Per Share	Additional Paid-in Capital Common Stock Issued for Services 0.90 Per Share	Additional Paid-in Capital Common Stock Issued for Services 1.06 Per Share	Additional Paid-in Capital Common Stock and Warrants Issued for Cash 1.1 Per Share	Additional Paid-in Capital Common Stock and Warrants Issued for Cash 2.1 Per Share	Additional Paid-in Capital Common Stock Issued For License Rights Two Point Four One Per Share	Promissory Note	Promissory Note Common Stock 0.19 Per Share	Promissory Note Common Stock 0.32 Per Share	Promissory Note Common Stock Issued for Research and Development 0.53 Per Share	Promissory Note Common Stock Issued for Research and Development 0.65 Per Share	Promissory Note Common Stock Issued for Services 0.90 Per Share	Promissory Note Common Stock Issued for Services 1.06 Per Share	Promissory Note Common Stock and Warrants Issued for Cash 1.1 Per Share	Promissory Note Common Stock and Warrants Issued for Cash 2.1 Per Share	Promissory Note Common Stock Issued For License Rights Two Point Four One Per Share	Deficit Accumulated During the Development Stage	Deficit Accumulated During the Development Stage Common Stock 0.19 Per Share	Deficit Accumulated During the Development Stage Common Stock 0.32 Per Share	Deficit Accumulated During the Development Stage Common Stock Issued for Research and Development 0.53 Per Share	Deficit Accumulated During the Development Stage Common Stock Issued for Research and Development 0.65 Per Share	Deficit Accumulated During the Development Stage Common Stock Issued for Services 0.90 Per Share	Deficit Accumulated During the Development Stage Common Stock Issued for Services 1.06 Per Share	Deficit Accumulated During the Development Stage Common Stock and Warrants Issued for Cash 1.1 Per Share	Deficit Accumulated During the Development Stage Common Stock and Warrants Issued for Cash 2.1 Per Share	Deficit Accumulated During the Development Stage Common Stock Issued For License Rights Two Point Four One Per Share
Balance at Feb. 24, 2004	$ 97										$ 0										$ 10										$ 87										$ 0										$ 0
Balance, shares at Feb. 24, 2004											0										6,256,500
Common stock issued for cash	150										0										15										135										0										0
Common stock issued for cash, shares											0										193,500
Net loss	(11,741)										0										0										0										0										(11,741)
Balance at Dec. 31, 2004	(11,494)										0										25										222										0										(11,741)
Balance, shares at Dec. 31, 2004											0										6,450,000
Common stock issued for cash		75,000	50,000									0	0									659	16									74,341	49,984									0	0									0	0
Common stock issued for cash, shares												0	0									387,000	154,800
Net loss	(246,004)										0										0										0										0										(246,004)
Common stock issued for research and development	152,760										0										15										152,745										0										0
Common stock issued for research and development, shares											0										154,800
Balance at Dec. 31, 2005	20,262										0										715										277,292										0										(257,745)
Balance, shares at Dec. 31, 2005											0										7,146,600
Net loss	(5,152,713)										0										0										0										0										(5,152,713)
Common stock issued for research and development	694,000										0										69										693,931										0										0
Common stock issued for research and development, shares											0										694,000
Common stock issued for services	36,546										0										7										36,539										0										0
Common stock issued for services, shares											0										73,093
Common stock issued for cash in private placements net of redemptions	549,400										0										151										549,249										0										0
Common stock issued for cash in private placements net of redemptions, shares											0										1,510,000
Shares issued in connection with reverse merger	0										0										83										(83)										0										0
Shares issued in connection with reverse merger, shares											0										825,124
Shares cancelled in connection with the sale of Optical Molecular Imaging, Inc.	(65,000)										0										(206)										(64,794)										0										0
Shares cancelled in connection with the sale of Optical Molecular Imaging, Inc., shares											0										(2,059,100)
Exercise of stock options	3,522										0										1										3,521										0										0
Exercise of stock options, shares											0										10,062
Stock based compensation (options)	4,103,645										0										0										4,103,645										0										0
Stock based compensation, shares											0										0
Balance at Dec. 31, 2006	189,662										0										820										5,599,300										0										(5,410,458)
Balance, shares at Dec. 31, 2006											0										8,199,779
Common stock issued for cash	4,892,486										0										353										4,892,133										0										0
Common stock issued for cash, shares											0										3,531,603
Net loss	(3,614,753)										0										0										0										0										(3,614,753)
Exercise of stock options	0										0										5										(5)										0										0
Exercise of stock options, shares											0										51,111
Stock based compensation (options)	1,296,714										0										0										1,296,714										0										0
Stock based compensation, shares											0										0
Reclassification of warrant derivative liability	2,233,600										0										0										2,233,600										0										0
Balance at Dec. 31, 2007	4,997,709										0										1,178										14,021,742										0										(9,025,211)
Balance, shares at Dec. 31, 2007											0										11,782,493
Net loss	(3,059,730)										0										0										0										0										(3,059,730)
Common stock issued for research and development				424,000	65,000									0	0									80	10									423,920	64,990									0	0									0	0
Common stock issued for research and development, shares														0	0									800,000	100,000
Stock based compensation (options)	513,357										0										0										513,357										0										0
Stock based compensation, shares											0										0
Balance at Dec. 31, 2008	2,940,336										0										1,268										15,024,009										0										(12,084,941)
Balance, shares at Dec. 31, 2008											0										12,682,493
Net loss	(2,626,205)										0										0										0										0										(2,626,205)
Exercise of stock options	11,814										0										22										64,460										(52,668)										0
Exercise of stock options, shares											0										214,357
Stock based compensation (options)	308,302										0										0										308,302										0										0
Stock based compensation, shares											0										0
Exercise of warrants	462,748										0										197										462,551										0										0
Exercise of warrants, shares											0										1,970,992
Balance at Dec. 31, 2009	1,096,995										0										1,487										15,859,322										(52,668)										(14,711,146)
Balance, shares at Dec. 31, 2009											0										14,867,842
Net loss	(6,150,142)										0										0										0										0										(6,150,142)
Common stock issued for services						54,000	8,156									0	0									6	0									53,994	8,156									0	0									0	0
Common stock issued for services, shares																0	0									60,000	7,694
Stock based compensation (options)	745,697										0										0										745,697										0										0
Stock based compensation, shares											0										0
Common stock and warrants issued for cash net of offering costs	3,248,738										0										423										3,248,315										0										0
Common stock and warrants issued for cash net of offering costs, shares											0										4,230,910
Preferred stock and warrants issued for cash net of offering costs	0										0										0										0										0										0
Preferred stock and warrants issued for cash net of offering costs, shares											400										0
Exercise of warrants in exchange for promissory note	0										0										270										5,399,730										(5,400,000)										0
Exercise of warrants in exchange for promissory note, shares											0										2,700,000
Redemption of preferred stock for repayment of promissory note	3,307,500										0										0										0										5,400,000										(2,092,500)
Redemption of preferred stock for repayment of promissory note, shares											(400)										0
Exercise of stock options	26,500										0										5										26,495										0										0
Exercise of stock options, shares											0										50,000
Cashless exercise of stock options	0										0										30										(30)										0										0
Cashless exercise of stock options, shares											0										297,156
Interest on promissory note	(1,614)										0										0										0										(1,614)										0
Balance at Dec. 31, 2010	2,335,830																				2,221										25,341,679										(54,282)										(22,953,788)
Balance, shares at Dec. 31, 2010											0										22,213,602
Net loss	(5,719,903)										0										0										0										0										(5,719,903)
Stock based compensation (options)	1,190,133										0										13										1,190,120										0										0
Stock based compensation, shares											0										131,537
Common stock and warrants issued for cash net of offering costs	4,983,339										0										522										4,982,817										0										0
Common stock and warrants issued for cash net of offering costs, shares											0										5,219,768
Exercise of stock options	388,379										0										38										388,341										0										0
Exercise of stock options, shares											0										382,000
Cashless exercise of stock options	0										0										67										(67)										0										0
Interest on promissory note	(352)										0										0										0										(352)										0
Cashless exercise of warrants shares											0										667,077
Redemption of promissory note	54,634										0										0										0										54,634										0
Balance at Dec. 31, 2011	3,232,060										0										2,861										31,902,890																				(28,673,691)
Balance, shares at Dec. 31, 2011											0										28,613,984
Net loss	(14,495,139)										0										0										0										0										(14,495,139)
Stock based compensation (options)	496,007										0										0										496,007										0										0
Stock based compensation, shares											0										0
Reclassification of warrant derivative liability	1,981,743										0										0										1,981,743										0										0
Exercise of warrants	3,201,920										0										230										3,201,690										0										0
Exercise of warrants, shares											0										2,295,334
Common stock and warrants issued for cash net of offering costs								9,271,370	19,359,553									0	0									949	1,000									9,270,421	19,358,553									0	0									0	0
Common stock and warrants issued for cash net of offering costs, shares																		0	0									9,489,436	10,000,000
Exercise of stock options	20,500										0										2										20,498										0										0
Exercise of stock options, shares											0										20,000
Cashless exercise of stock options	0										0										79										(79)										0										0
Cashless exercise of stock options, shares											0										792,018
Cashless exercise of warrants shares											0										288,973
Cashless exercise of warrants	0										0										29										(29)										0										0
Restricted stock vested	0										0										0										0										0										0
Restricted stock vested, shares											0										1,251
Balance at Dec. 31, 2012	23,068,014										0										5,150										66,231,694										0										(43,168,830)
Balance, shares at Dec. 31, 2012											0										51,500,996
Net loss	(4,973,791)																				0										0										0										(4,973,791)
Common stock issued for research and development	0
Exercise of stock options	84,131										0										10										84,121										0										0
Exercise of stock options, shares	170,401										0										95,401
Stock based compensation (options)	164,128										0										0										164,128										0										0
Stock based compensation, shares											0										0
Exercise of warrants	10,732										0										0										10,732										0										0
Exercise of warrants, shares											0										0
Exercise of stock options	84,131
Cashless exercise of stock options	0										0										4										(4)										0										0
Cashless exercise of stock options, shares											0										0
Common stock issued for license rights										75,000										0										3										74,997										0										0
Common stock issued for license rights, shares																				0										31,155
Balance at Mar. 31, 2013	$ 18,428,214										$ 0										$ 5,167										$ 66,565,668																				$ (48,142,621)
Balance, shares at Mar. 31, 2013											0										51,500,996