Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v2.4.0.6
Subsequent Events (Details) (USD $)
In Millions, except Share data, unless otherwise specified
9 Months Ended 0 Months Ended
Sep. 30, 2012
Mar. 09, 2012
Oct. 29, 2012
Subsequent Event [Member]
October 2012 Underwritten Offering [Member]
Subsequent Event [Line Items]      
Underwritten public offering shares of common stock (in shares) 29,669,154   13,333,333
Public offering price (in dollars per share) $ 1.76 $ 1.32 $ 3
Option period granted to underwriters     30 days
Option granted to underwriters to purchase additional shares under the public offering (in shares)     1,999,999
Total gross proceeds from offering $ 39.2   $ 40.0
Underwriting discounts commissions and estimated offering expenses $ 3.0   $ 3.1