3. Inventories (Tables)

6 Months Ended

Jun. 30, 2012

Inventories Tables

Inventories consist

Inventories consist of :	June 30, 2012		December 31, 2011
Raw materials	$	1,094,730	$	815,357
Work in process		97,289		25,641
Finished goods (including $649,000 and $822,000 held by customers at June 30, 2012 and December 31, 2011, respectively)		1,628,497		1,881,785
Total inventories	$	2,820,516	$	2,722,783