Inventories (Tables)

12 Months Ended

Dec. 31, 2012

Inventories

Schedule of major components of inventories

The major components of inventories at December 31, 2012 and 2011 were as follows:

	2012		2011
Finished products	$	1,554,203	$	804,049
Work-in-process		1,599,761		1,652,708
Raw materials		3,191,018		2,023,172
	$	6,344,982	$	4,479,929