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Legal Proceedings and Other Matters Commitments and Contingencies (Details)
1 Months Ended 12 Months Ended
Apr. 12, 2016
claims
Mar. 22, 2016
claims
Aug. 31, 2015
USD ($)
patent
Jul. 31, 2012
patent
Apr. 30, 2016
USD ($)
Feb. 22, 2016
claims
Legacy TCS IP Matters [Member]            
Loss Contingencies [Line Items]            
Estimate of possible loss | $         $ 4,500,000  
CallWave Communications LLC [Member] | Pending Litigation [Member]            
Loss Contingencies [Line Items]            
Number of patents allegedly infringed | patent       1    
IP Cube Partners Co. Ltd. [Member] | Pending Litigation [Member]            
Loss Contingencies [Line Items]            
Number of patents allegedly infringed | patent     2      
Damages sought | $     $ 2,300,000      
TCS Acquisition Related Lawsuits [Member]            
Loss Contingencies [Line Items]            
Number of complaints | claims           5
Number of complaints dismissed | claims 2 3