Consolidated Statements of Shareholders' Equity (Deficit) (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2010	$ 26	$ 153,974	$ (244,395)	$ (139)	$ (779)	$ (91,313)
Balance (in shares) at Dec. 31, 2010	25,678,978				2,012
Shares issued for acquisition of patent rights	5	345	0	0	0	350
Shares issued for acquisition of patent rights (in shares)	5,000,000				0
Shares issued upon conversions of Series C preferred stock	223	9,651	0	0	0	9,874
Shares issued upon conversions of Series C preferred stock (in shares)	223,611,975				0
Shares issued upon conversions of Series D preferred stock	103	1,848	0	0	0	1,951
Shares issued upon conversions of Series D preferred stock (in shares)	102,704,877				0
Shares issued upon conversions of convertible debentures	185	4,122	0	0	0	4,307
Shares issued upon conversions of convertible debentures (in shares)	184,988,281				0
Stock-based compensation expense	0	66	0	0	0	66
Comprehensive income (loss) - foreign currency translation adjustment	0	0	0	(40)	0	(40)
Net loss	0	0	(849)	0	0	(849)
Balance at Dec. 31, 2011	542	170,006	(245,244)	(179)	(779)	(75,654)
Balance (in shares) at Dec. 31, 2011	541,984,111				2,012
Shares issued upon conversions of Series C preferred stock	34	844	0	0	0	878
Shares issued upon conversions of Series C preferred stock (in shares)	34,168,248				0
Shares issued upon conversions of Series D preferred stock	143	2,199	0	0	0	2,342
Shares issued upon conversions of Series D preferred stock (in shares)	142,457,436				0
Shares issued upon conversions of convertible debentures	1,387	15,751	0	0	0	17,138
Shares issued upon conversions of convertible debentures (in shares)	1,387,426,087				0
Stock-based compensation expense	0	14	0	0	0	14
Comprehensive income (loss) - foreign currency translation adjustment	0		0	(56)	0	(56)
Net loss	0		(19,386)	0	0	(19,386)
Balance at Dec. 31, 2012	$ 2,106	$ 188,814	$ (264,630)	$ (235)	$ (779)	$ (74,724)
Balance (in shares) at Dec. 31, 2012	2,106,035,882				2,012