Inventories (Tables)

6 Months Ended

Jun. 30, 2012

Inventory Disclosure [Abstract]

Component of inventory

	June 30, 2012			December 31, 2011
Raw materials	$	7,974,309		$	5,606,073
Work-in-progress		8,996,610			7,919,403
Finished goods		22,930,130			23,916,206
		39,901,049			37,441,682
Less: allowance for obsolete inventories		(1,030,351	)		(566,878	)
Total inventories	$	38,870,698		$	36,874,804