Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details Textual)

Commitments and Contingencies (Details Textual) (USD $)
9 Months Ended
Dec. 31, 2013
Mar. 31, 2013
Loss Contingencies [Line Items]    
Future obligations and commitments $ 20,018,000 $ 19,000,000
Total contingent reserves related to intellectual property and indemnification claims 700,000 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 2,578,000 2,333,000
Increase (decrease) in future obligations and commitments 1,000,000  
Kentrox [Member]
Loss Contingencies [Line Items]    
Increase (decrease) in future obligations and commitments 800,000  
Arkadin [Member]
Loss Contingencies [Line Items]    
Escrow Deposit Released $ 1,100,000