Quarterly report pursuant to sections 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v2.4.0.8
Subsequent Events - Additional Information (Detail) (Subsequent Event [Member], USD $)
Jul. 18, 2013
Members
Jul. 17, 2013
Minimum [Member]
Jul. 17, 2013
Maximum [Member]
Subsequent Event [Line Items]      
Per share price for acquisition   $ 1.85 $ 2.00
Number of independent members in Special Committee 3