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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2018
Income Tax Disclosure [Abstract]  
Schedule of provision for income taxes
   Years Ended December 31, 
   2018   2017 
Current  $(178,408)  $- 
Deferred   68,419    122,631 
Total income tax expense  $(109,989)  $122,631 
Schedule of reconciliation of income taxes calculated at federal statutory rates to provision for income taxes
   Years Ended December 31, 
   2018   2017 
(Benefit) tax at statutory rate of 25%  $(2,715,040)  $(4,788,734)
Prior year refund received   (178,408)   - 
Other, primarily the difference in U.S. tax rates   7,881    8,077 
Change in valuation allowance   2,775,578    4,903,288 
Income tax (benefit) expense  $(109,989)  $122,631 
Schedule of temporary differences to deferred income tax assets and liability
  December 31, 
   2018   2017 
Deferred income tax assets:          
Allowance for doubtful trade receivables  $4,453,769   $4,552,432 
Allowance for doubtful other receivables   8,721    10,002 
Inventory obsolescence reserve   1,487,087    1,595,671 
Expenses not deductible in current year   1,101,268    1,076,126 
Advances for intangible assets impairment   5,628,803    4,387,237 
PRC net operating loss carry forward   13,124,191    14,572,439 
U.S. net operating loss carry forward   1,187,112    1,076,830 
Total deferred income tax assets   26,990,951    27,270,737 
Valuation allowance   (26,990,951)   (27,270,737)
Net deferred income tax asset  $-   $- 
Deferred income tax liability:          
Intangible assets  $764,374   $738,175