Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses (Details Textual)

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Accrued Expenses (Details Textual) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Accrued Expenses (Textual) [Abstract]        
Restructuring charges $ 0 $ 0 $ 115 $ 53