Inventories (Tables)

3 Months Ended

Mar. 31, 2014

Inventories [Abstract]

Schedule of inventory

	March 31, 2014			December 31, 2013
Raw materials	$	1,934,948		$	5,658,519
Work-in-progress		29,291,626			25,862,185
Finished goods		51,782,742			55,664,077
		83,009,316			87,184,781
Less: allowance for obsolete inventories		(11,418,648	)		(11,994,584	)
Total inventories	$	71,590,668		$	75,190,197