Income Taxes (Details 2) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Deferred income tax assets:
Allowance for doubtful trade receivables	$ 4,393,775	$ 4,453,769
Allowance for doubtful other receivables	5,682	8,721
Inventory obsolescence reserve	1,528,482	1,487,087
Expenses not deductible in current year	1,085,520	1,101,268
Advances for intangible assets impairment	9,765,906	5,628,803
Lease liability, net	807
PRC net operating loss carry forward	12,682,671	13,124,191
U.S. net operating loss carry forward	1,296,813	1,187,112
Total deferred income tax assets	30,759,656	26,990,951
Valuation allowance	(30,759,656)	(26,990,951)
Net deferred income tax asset
Deferred income tax liability:
Intangible assets	$ 753,444	$ 764,374