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Inventory (Details) - USD ($)
Jun. 30, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Merchandise $ 258 $ 1,318
Finished goods 91,324 100,736
Work-in-process 19,933 20,243
Raw materials 55,824 56,691
Allowance for inventory valuation and obsolescence loss (167,081) (177,670)
Inventory, net $ 258 $ 1,318