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NOTE 14 QUARTERLY RESULTS OF OPERATIONS (UNAUDITED) - 2012 (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Quarterly Financial Information Disclosure [Abstract]                      
Total revenue                   $ 251 $ 395    $ 646 $ 1,301
Operating expenses 8,628 6,054 4,380 4,769 4,118 4,089 1,791 1,710 23,831 11,708 11,235
Interest and other expense, net (197) (195) (146) (61) (47) (62) (263) (1) (599) (373) 2,738
Loss from continuing operations (8,825) (6,249) (4,526) (4,830) (4,165) (4,151) (1,803) (1,316) (24,430) (11,435) (7,196)
Discontinued operations 1,088 128 (43) (91) (96) (51) (129) (103) 1,082 (379) (150)
Net loss $ (7,737) $ (6,121) $ (4,569) $ (4,921) $ (4,261) $ (4,202) $ (1,932) $ (1,419) $ (23,348) $ (11,814) $ (7,346)
Basic and diluted net loss per share:                      
Loss from continuing operations $ (0.03) $ (0.02) $ (0.02) $ (0.02) $ (0.02) $ (0.02) $ (0.05) $ (0.03) $ (0.10) $ (0.10) $ (0.18)
Net loss $ (0.03) $ (0.02) $ (0.02) $ (0.02) $ (0.02) $ (0.02) $ (0.05) $ (0.04) $ (0.10) $ (0.10) $ (0.19)