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Inventories (Tables)
12 Months Ended
Dec. 31, 2018
Inventory Disclosure [Abstract]  
Schedule of inventories, current
The Company's net inventories consisted of the following as of December 31:
20182017
Raw materials and work in process$18,378,450 $3,156,002 
Consigned inventory937,006 249,964 
Finished goods, net of reserve8,511,887 3,331,882 
Total inventories27,827,343 6,737,848 
less non-current inventories(15,749,000)— 
Total inventories classified as current$12,078,343 $6,737,848