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.