XML 30 R42.htm IDEA: XBRL DOCUMENT v2.4.0.8
Note 8 - Stockholders' Equity (Details) - Option Summary (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Option Summary [Abstract]      
Outstanding at beginning of year 4,323,874 2,505,283 160,833
Outstanding at beginning of year (in Dollars per share) $ 8.46 $ 6.13 $ 29.83
Granted 4,256,971 1,874,246 2,403,495
Granted (in Dollars per share) $ 8.08 $ 11.61 $ 5.19
Exercised (537,029)    
Exercised (in Dollars per share) $ 5.20    
Expired or Forfeited (1,688,135) (55,655) (59,045)
Expired or Forfeited (in Dollars per share) $ 9.45 $ 9.56 $ 32.53
Outstanding at end of year 6,355,681 4,323,874 2,505,283
Outstanding at end of year (in Dollars per share) $ 8.22 $ 8.46 $ 6.13
Outstanding at end of year 8 years 51 days    
Outstanding at end of year (in Dollars) $ 10,704,578    
Options exercisable at year end 1,770,597 1,142,099 337,002
Options exercisable at year end (in Dollars per share) $ 8.67 $ 7.98 $ 10.68
Options exercisable at year end 5 years 43 days    
Options exercisable at year end (in Dollars) 4,607,452    
Options vested or expected to vest 6,292,296 4,283,344 2,471,725
Options vested or expected to vest (in Dollars per share) $ 8.22 $ 8.45 $ 6.14
Options vested or expected to vest 8 years 47 days    
Options vested or expected to vest (in Dollars) $ 10,614,670    
Shares available for future grant at year end 1,797,694 1,018,766 2,213,155
Weighted-average fair value of stock options granted during the year (in Dollars per share) $ 8.08 $ 11.61 $ 5.19