Inventories (Tables)

12 Months Ended

Dec. 31, 2012

Inventories

Inventories consist of the following:

	December 31,
	2012		2011
Raw materials	$	6,109,807	$	4,091,366
Work-in-process		777,056		1,503,565
Finished goods		1,396,609		1,707,552
Total	$	8,283,472	$	7,302,483