Inventory
 9 Months Ended
Sep. 30, 2012
Inventory Disclosure [Abstract]  
Inventory

7. Inventory  

 

                Inventory as of September 30, 2012 and December 31, 2011 consisted of the following:

 

 

 

September 30, 2012

 

December 31, 2011

Raw materials and supplies

 

$

9,479,058 

 

$

9,159,004 

Work-in-process

 

18,584 

 

462,832 

Finished goods

 

3,507,478 

 

732,871 

 

 

 

 

 

 

 

$

13,005,120 

 

$

10,354,707 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Finished goods inventory at September 30, 2012 includes approximately $3 million related to 245 units shipped to a customer site during the quarter in connection with a customer lease agreement that was not yet complete.