XML 30 R13.htm IDEA: XBRL DOCUMENT v2.4.0.6
Deferred Revenue
3 Months Ended
Mar. 31, 2012
Deferred Revenue [Abstract]  
Deferred Revenue

8. Deferred Revenue

Deferred revenue consists of the following:

March 31,

December 31,

2012

2011

 Product shipped, revenue deferred

$2,241,141

 

$2,001,160

 Customer deposits

       532,700

 

      1,156,900

 Deferred service and license fees

      6,106,496

 

   5,696,959

      8,880,337

 

8,855,019

 Less: Long-term deferred revenue

      (602,520)

 

(634,713)

 Total current deferred revenue

$8,277,817

 

$8,220,306