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Inventories (Details) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Raw materials $ 1,207,334
Work-in-process 872,376
Finished goods 5,547,301
Inventory, gross 7,627,011
Less: reserve for obsolete inventories and impairment loss (4,519,567) (1,088,443)
Inventories, net
Less: Inventories, net - discontinued operations (6,414,305)
Inventories, net - continuing operations