Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2012
Dec. 31, 2012
Mar. 31, 2012
Commitments and Contingencies (Textual) [Abstract]      
Future obligations and commitments   $ 16,900,000 $ 16,700,000
Increase (decrease) in future obligations and commitments   200,000  
Indemnification claims related to discontinued operations   1,900,000 400,000
Total contingent reserves related to intellectual property and indemnification claims   1,900,000 800,000
Contingency regarding an interpretation of the CNS Asset Purchase Agreement   900,000  
Contingency reserve for the CNS claim     400,000
Additional payment for the contingency 500,000    
Maximum ANTONE earn-out that could be paid before offsets   3,500,000  
Accrued expenses   3,424,000 2,125,000
Fair value of contingent consideration liability after offset of working capital adjustment and indemnification claim   $ 2,400,000