Statements of Stockholders' Deficit (USD $)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2008	$ 901,955	$ 109,457,677	$ (129,332,090)		$ (18,972,458)
Balance (in Shares) at Dec. 31, 2008	90,195,520
Issuance of stock to Victory Park in connection with debt issuance and Tarsa transaction	6,750	930,000			936,750
Issuance of stock to Victory Park in connection with debt issuance and Tarsa transaction (in Shares)	675,000
Stock issued in lieu of director fees	919	72,581			73,500
Stock issued in lieu of director fees (in Shares)	91,886
Recognition of restricted stock compensation		119,700			119,700
Issuance of restricted stock	600	(600)
Issuance of restricted stock (in Shares)	60,000
Discount on note payable issued to joint venture partner		27,978			27,978
Recognition of stock option compensation - employees and directors		378,212			378,212
Recognition of stock option compensation - consultants		43,393			43,393
Cashless warrant exercise	778	(778)
Cashless warrant exercise (in Shares)	77,811
Exercise of stock options	6,299	324,644			330,943
Exercise of stock options (in Shares)	629,900
Net loss			(13,379,679)		(13,379,679)
Balance at Dec. 31, 2009	917,301	111,352,807	(142,711,769)		(30,441,661)
Balance (in Shares) at Dec. 31, 2009	91,730,117
Stock issued in lieu of director fees	1,748	127,252			129,000
Stock issued in lieu of director fees (in Shares)	174,780
Recognition of restricted stock compensation		243,240			243,240
Issuance of restricted stock	3,721	(3,721)
Issuance of restricted stock (in Shares)	372,100
Discount on note payable issued to joint venture partner		(1,918)			(1,918)
Forfeiture of restricted stock		267		(267)
Recognition of stock option compensation - employees and directors		689,340			689,340
Recognition of stock option compensation - consultants		(6,371)			(6,371)
Exercise of stock options	1,586	71,762			73,348
Exercise of stock options (in Shares)	158,600
Issuance of common stock to directors	400	30,400			30,800
Issuance of common stock to directors (in Shares)	40,000
Net loss			(32,533,951)		(32,533,951)
Balance at Dec. 31, 2010	924,756	112,503,058	(175,245,720)	(267)	(61,818,173)
Balance (in Shares) at Dec. 31, 2010	92,475,597
Stock issued in lieu of director fees	1,144	100,856			102,000
Stock issued in lieu of director fees (in Shares)	114,423
Recognition of restricted stock compensation		68,834			68,834
Issuance of restricted stock	400	(400)
Issuance of restricted stock (in Shares)	40,000
Recognition of stock option compensation - employees and directors		1,410,598			1,410,598
Recognition of stock option compensation - consultants		(1,408)			(1,408)
Exercise of stock options	8,939	411,217		267	420,423
Exercise of stock options (in Shares)	893,850
Sale of stock to DDF (see Note 13)	16,917	1,483,083			1,500,000
Sale of stock to DDF (see Note 13) (in Shares)	1,691,729
Adjustment to fair value for 2009 Victory Park warrant exchange		(283,880)			(283,880)
Net loss			(7,095,558)		(7,095,558)
Balance at Dec. 31, 2011	$ 952,156	$ 115,691,958	$ (182,341,278)		$ (65,697,164)
Balance (in Shares) at Dec. 31, 2011	95,215,599