Consolidated Statements of Stockholders' Deficit (USD $)	Total	Capital in Excess of Par Value	Accumulated Deficit	Class A Common Stock Common Stock	Class B Common Stock Common Stock
Balance at Dec. 31, 2012	$ (2,865,457)	$ 393,000,325	$ (396,916,216)	$ 1,050,079	$ 355
Balance (in shares) at Dec. 31, 2012				105,007,873	35,556
Increase (Decrease) in Stockholders' Equity
Net loss	(10,213,755)		(10,213,755)
Issuance of Class A common stock at prices ranging from $0.70 - $0.73 per share, less issuance costs of $8,742	262,945	259,145		3,800
Issuance of Class A common stock at prices ranging from $0.70 - $0.73 per share, less issuance costs of $8,742 (in shares)				379,950
Private placement of Class A common stock at $0.83 per share, less issuance costs of $90,000	910,001	897,953		12,048
Private placement of Class A common stock at $0.83 per share, less issuance costs of $90,000 (in shares)				1,204,820
Employee stock options exercised at $0.81 per share	42,039	41,520		519
Employee stock options exercised at $0.81 per share (in shares)				51,933
Stock based compensation	437,706	437,706
Balance at Mar. 31, 2013	$ (11,426,521)	$ 394,636,649	$ (407,129,971)	$ 1,066,446	$ 355
Balance (in shares) at Mar. 31, 2013				106,644,576	35,556