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Capital Availability (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2011
Capital Availability [Abstract]          
Net Income (Loss) Attributable to Parent $ (11,248,000) $ (8,335,000) $ (28,455,000) $ (25,544,000)  
Retained Earnings (Accumulated Deficit) (270,904,000)   (270,904,000)   (242,449,000)
Net cash provided by (used in) operating activities     $ (23,877,000) $ (27,424,000)