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Deferred Revenue
6 Months Ended
Jun. 30, 2016
Deferred Revenue [Abstract]  
Deferred Revenue

8. Deferred Revenue

Deferred revenue consists of the following:





 

 

 



June 30,

 

December 31,



2016

 

2015



 

 

 

 Product shipped, revenue deferred

$        338,831

 

$        366,388

 Customer deposits

1,050,000 

 

2,505,000 

 Deferred service and license fees

6,668,089 

 

6,583,745 

 Total deferred revenue

8,056,920 

 

9,455,133 

 Less: Long-term deferred revenue

(620,945)

 

(2,009,198)

 Total current deferred revenue

$     7,435,975

 

$     7,445,935