Inventories (Schedule of Inventories) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Inventory Disclosure [Abstract]
Raw materials	$ 78,340,632	$ 75,081,810
Work-in-process	22,673,765	21,409,976
Finished goods	24,197,477	23,582,378
Total Inventory	$ 125,211,874	$ 120,074,164	[1]

[1] Note: The condensed consolidated balance sheet at December 31, 2013 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.