v2.4.0.8
Stockholders' Equity (Details 4) (USD $)
12 Months Ended
Sep. 30, 2013
Options Outstanding  
Number of Options (in shares) 1,592,406
Weighted-Average Remaining Contractual Life 5 years 10 months 6 days
Weighted-Average Exercise Price (in dollars per share) $ 16.46
$2.00 - 8.00
 
Summary of information about stock options outstanding and exercisable  
Exercise price, low end of range (in dollars per share) $ 2.00
Exercise price, high end of range (in dollars per share) $ 8.00
Options Outstanding  
Number of Options (in shares) 192,001
Weighted-Average Remaining Contractual Life 4 years 8 months 19 days
Weighted-Average Exercise Price (in dollars per share) $ 7.33
$8.23 - $46.72
 
Summary of information about stock options outstanding and exercisable  
Exercise price, low end of range (in dollars per share) $ 8.23
Exercise price, high end of range (in dollars per share) $ 46.72
Options Outstanding  
Number of Options (in shares) 1,400,405
Weighted-Average Remaining Contractual Life 6 years 4 days
Weighted-Average Exercise Price (in dollars per share) $ 17.71
$3.00 - $42.31
 
Summary of information about stock options outstanding and exercisable  
Exercise price, low end of range (in dollars per share) $ 3.00
Exercise price, high end of range (in dollars per share) $ 42.31
Options Exercisable  
Number Exercisable (in shares) 1,161,779
Weighted-Average Remaining Contractual Life 5 years 2 months 5 days
Weighted-Average Exercise Price (in dollars per share) $ 13.48