Statements of Stockholders' Deficit (USD $) In Thousands, except Share data	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Common Stock Held in Treasury
Beginning Balance at Dec. 31, 2009	$ (35,227)	$ 424	$ 392,335	$ (424,034)	$ (3,952)
Beginning Balance, Shares at Dec. 31, 2009		42,360,133			289,732
Net Income (loss)	(56,909)			(56,909)
Issuance of common stock to directors	10		10
Issuance of common stock to directors, Shares		13,674
Reclassification of derivative liability due to exercise of warrants	7,053		7,053
Exercise of warrants		28	(28)
Exercise of warrants, Shares		2,809,971
Equity proceeds from issuance of common stock, net of share issuance expenses	1,754	70	1,684
Equity proceeds from issuance of common stock, net of share issuance expenses, Shares		6,995,056
Stock based compensation for employees	723		723
Stock based compensation for directors	76		76
Ending Balance at Dec. 31, 2010	(82,520)	522	401,853	(480,943)	(3,952)
Ending Balance, Shares at Dec. 31, 2010		52,178,834			289,732
Net Income (loss)	15,051			15,051
Reclassification of derivative liability due to exercise of warrants	349		349
Exercise of warrants	236	2	234
Exercise of warrants, Shares		187,500
Equity proceeds from issuance of common stock, net of share issuance expenses	2,036	86	1,950
Equity proceeds from issuance of common stock, net of share issuance expenses, Shares		8,600,876
Exercise of options	6		6
Exercise of options, Shares	10,000	10,000
Stock based compensation for employees	188		188
Stock based compensation for directors	127		127
Ending Balance at Dec. 31, 2011	(64,527)	610	404,707	(465,892)	(3,952)
Ending Balance, Shares at Dec. 31, 2011		60,977,210			289,732
Net Income (loss)	(1,928)			(1,928)
Exercise of options, Shares	0
Capital contributed from imputed interest	45		45
Stock based compensation for employees	176		176
Stock based compensation for directors	168		168
Ending Balance at Dec. 31, 2012	$ (66,066)	$ 610	$ 405,096	$ (467,820)	$ (3,952)
Ending Balance, Shares at Dec. 31, 2012	3,275,334	60,977,210			289,732