Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details Textual)

Commitments and Contingencies (Details Textual) (USD $)
3 Months Ended
Jun. 30, 2013
Mar. 31, 2013
Commitments and Contingencies (Textual) [Abstract]    
Increase (decrease) in future obligations and commitments $ 2,600,000  
Future obligations and commitments 21,647,000 19,000,000
Total contingent reserves related to intellectual property and indemnification claims 1,400,000 1,700,000
Maximum ANTONE earn-out that could be paid before offsets 3,500,000  
Fair value of contingent consideration liability after offset of working capital adjustment and indemnification claim $ 2,384,000 $ 2,333,000