Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details Textual)

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Commitments and Contingencies (Details Textual) (USD $)
3 Months Ended
Jun. 30, 2012
Mar. 31, 2012
Commitments and Contingencies (Textual) [Abstract]    
Future obligations and commitments $ 15,900,000 $ 16,700,000
Increase in future obligations and commitments 800,000  
Indemnification claims related to discontinued operations 410,000 410,000
Contingent liability accrual related to intellectual property and indemnification claims 810,000 810,000
Contingent cash consideration liability related to the acquisition of ANTONE $ 2,546,000