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14. Income Taxes (Tables)
12 Months Ended
Dec. 31, 2019
Income Tax Disclosure [Abstract]  
Domestic and Foreign Components of Income (Loss) From Operations Before Income Taxes
    2019     2018  
Domestic   $ 462,292     $ 3,675,095  
Foreign     (4,135,183 )     (3,134,202 )
Total   $ (3,672,891 )   $ 540,893  
Schedule of Components of Income Tax Expense (Benefit)
    2019     2018  
Tax benefit at federal statutory rate   $ (771,307 )     113,588  
State income tax effect     (177,435 )     12,602  
Foreign income tax effect     (147,166 )     (102,078 )
Non-deductible items     801       492  
Percentage depletion     (52,416 )     (47,341 )
Adjustment to prior year tax estimates - Domestic     (269,906 )     -  
Adjustment to prior year tax estimates - Foreign      641,438        -  
Impact on change in foreign exchange rate     103,218       -  
Change in valuation allowance - Domestic     926,873       (295,984 )
Change in valuation allowance - Foreign     (254,101 )     318,721  
Foreign tax assessment (benefit)     -       (332,332 )
   Total   $ -     $ (332,332 )
Deferred Tax Assets
    2019     2018  
Deferred tax asset:            
Domestic net operating loss carry forward   $ 1,111,779     $ 219,666  
Foreign net operating loss carry forward     1,623,580       1,877,681  
Other     -       1,006  
      Deferred tax asset     2,735,359       2,098,353  
                 
Valuation allowance (domestic)     (1,021,829 )     (94,956 )
Valuation allowance (foreign)     (1,623,580 )     (1,877,681 )
      Total deferred tax asset     89,950       125,716  
                 
Deferred tax liability                
   Property, plant, and equipment     (88,292 )     (125,716 )
   Other     (1,658 )        
     Total deferred tax liability     (89,950 )     (125,716 )
                 
Net deferred tax asset   $ -     $ -