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Summary of Significant Accounting Policies (Details 1)
12 Months Ended
Dec. 31, 2015
Equipment [Member] | Minimum [Member]  
Property, Plant and Equipment [Line Items]  
Property and equipment estimated useful lives 3 years
Equipment [Member] | Maximum [Member]  
Property, Plant and Equipment [Line Items]  
Property and equipment estimated useful lives 5 years
Demonstration equipment [Member] | Minimum [Member]  
Property, Plant and Equipment [Line Items]  
Property and equipment estimated useful lives 3 years
Demonstration equipment [Member] | Maximum [Member]  
Property, Plant and Equipment [Line Items]  
Property and equipment estimated useful lives 5 years
Furniture and fixtures [Member]  
Property, Plant and Equipment [Line Items]  
Property and equipment estimated useful lives 5 years
Purchased and developed software [Member]  
Property, Plant and Equipment [Line Items]  
Property and equipment estimated useful lives 5 years
Leased equipment [Member]  
Property, Plant and Equipment [Line Items]  
Property and equipment estimated useful lives Shorter of 5 years or term of lease
Leasehold improvements [Member]  
Property, Plant and Equipment [Line Items]  
Property and equipment estimated useful lives Shorter of 5 years or term of lease