Consolidated Statements of Shareholders' Equity (Deficit) (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit during Development Stage [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2011	$ (75,654)	$ 542	$ (779)	$ 170,006	$ (245,244)	$ (179)
Balance (in shares) at Dec. 31, 2011		541,984,111	2,012
Shares issued upon conversions of Series C preferred stock	878	34	0	844	0	0
Shares issued upon conversions of Series C preferred stock (in shares)		34,168,248	0
Shares issued upon conversions of Series D preferred stock	2,342	143	0	2,199	0	0
Shares issued upon conversions of Series D preferred stock (in shares)		142,457,436	0
Shares issued upon conversions of convertible debentures	17,138	1,387	0	15,751	0	0
Shares issued upon conversions of convertible debentures (in shares)		1,387,426,087	0
Stock-based compensation expense	14	0	0	14	0	0
Comprehensive (loss) income - foreign currency translation adjustment	(56)	0	0	0	0	(56)
Net income (loss)	(19,386)	0	0	0	(19,386)	0
Balance at Dec. 31, 2012	(74,724)	2,106	(779)	188,814	(264,630)	(235)
Balance (in shares) at Dec. 31, 2012		2,106,035,882	2,012
Shares issued upon conversions of Series C preferred stock	51	41	0	10	0	0
Shares issued upon conversions of Series C preferred stock (in shares)		41,237,113	0
Shares issued upon conversions of convertible debentures	4,959	2,838	0	2,121	0	0
Shares issued upon conversions of convertible debentures (in shares)		2,837,554,284	0
Deemed dividend on Series C preferred stock	(16)	0	0	0	(16)	0
Deemed dividend on convertible debentures	(726)	0	0	0	(726)	0
Stock-based compensation expense	1	0	0	1	0	0
Comprehensive (loss) income - foreign currency translation adjustment	133	0	0	0	0	133
Net income (loss)	28,462	0	0	0	28,462	0
Balance at Dec. 31, 2013	$ (41,860)	$ 4,985	$ (779)	$ 190,946	$ (236,910)	$ (102)
Balance (in shares) at Dec. 31, 2013		4,984,827,279	2,012