Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details Textual)

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Commitments and Contingencies (Details Textual) - USD ($)
$ in Thousands
6 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Mar. 31, 2015
Loss Contingencies [Line Items]      
Increase (decrease) in future obligations and commitments $ (1,100)    
Future obligations and commitments 16,137   $ 17,200
Payments for Previous Acquisition 455 $ 879  
Total contingent reserves related to intellectual property and indemnification claims     400
gain (loss) on contingency settlement disco 400    
Maximum ANTONE earn-out that could be paid before offsets 3,500    
Fair value of contingent consideration liability after offset of working capital adjustment and indemnification claim $ 1,030   $ 1,584