Quarterly report pursuant to Section 13 or 15(d)

Subsequent Event - Additional Information (Detail)

v2.4.0.8
Subsequent Event - Additional Information (Detail) (Subsequent Event [Member], USD $)
In Millions, except Share data, unless otherwise specified
0 Months Ended
Aug. 14, 2013
Subsequent Event [Member]
 
Subsequent Event [Line Items]  
Number of shares offered 6,000,000
Offering price per share $ 3.00
Net proceeds received from offering $ 16.2
Option period 30 days
Option to purchase additional shares granted to underwriters 900,000