Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details Textual)

v2.4.0.6
Fair Value Measurements (Details Textual) (Level 1 [Member], USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Level 1 [Member]
   
Fair Value Measurements (Textual) [Abstract]    
Money market funds $ 17,681 $ 52,383