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Note 20 - Income Taxes (Tables)
12 Months Ended
Dec. 31, 2019
Notes Tables  
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Deferred Tax Asset
     
 
Difference in bases of property, plant and equipment
  $
222
 
Net operating loss carryforwards    
29
 
Deferred tax asset
   
251
 
Less: valuation allowance
   
251
 
Net deferred tax asset
  $
-