Geographic Information (Tables)
9 Months Ended
Sep. 30, 2015
Risks and Uncertainties [Abstract]  
Schedule of geographic area information related to revenue from customers

Revenue by geographic area are based on the deployment site location of end-user customers. Substantially all of the revenue from North America is generated from the United States of America. Geographic area information related to revenue from customers is as follows:

 

             
Region   Nine Months Ended   Nine Months Ended
September 30, September 30,
2015 2014
North America   $ 18,826   $ 16,513
International            
Europe     6,968     7,338
Other     3,049     3,316
International     10,017     10,654
Total   $ 28,843   $ 27,167