Annual report pursuant to Section 13 and 15(d)

Common Stock (Details 7)

v2.4.0.6
Common Stock (Details 7) (USD $)
In Thousands, except 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
Computation of basic and diluted net loss attributable to common shareholders per share                      
Net loss attributable to common shareholders $ (4,103) $ (5,920) $ (4,215) $ (6,860) $ (9,568) $ 4,470 $ (6,530) $ (3,045) $ (21,098) $ (14,673) $ (12,584)
Weighted average number of common shares outstanding                 13,522,723 9,729,340 7,030,903
Basic and diluted net loss per common share $ (0.28) $ (0.40) $ (0.29) $ (0.67)         $ (1.56) $ (1.51) $ (1.79)