Inventories (Schedule of Inventories) (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Inventory Disclosure [Abstract]
Raw materials	$ 179,537,716	$ 164,974,553
Work-in-process	34,708,883	33,069,255
Finished goods	45,481,590	50,898,047
Total Inventory	$ 259,728,189	$ 248,941,855	[1]

[1] The condensed consolidated balance sheet at December 31, 2019 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.