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Software Development Costs, net
 12 Months Ended
Dec. 31, 2017
Software Development Costs, net [Abstract]  
Software Development Costs, net
9.  Software Development Costs, net

Software development costs, net consist of the following:

(in thousands)
December 31,
 
2017
 
2016
Beginning balance
$
982
 
$
1,145
Additions
 
177
  
245
Amortization
 
(469)
  
(408)
Ending balance
$
690
 
$
982
      

Software development costs capitalized were $0.2 million for the years ended December 31, 2017 and 2016, respectively.  Amortization of capitalized software development costs was $0.5 million and $0.4 million for the years ended December 31, 2017 and 2016, respectively, and was included in cost of revenue in the consolidated statements of operations.