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Note 11 - Fair Value Measurement
6 Months Ended
Jun. 30, 2020
Notes to Financial Statements  
Fair Value Disclosures [Text Block]
11.
Fair value measurement
 
The following table sets forth the fair value of the Company's financial assets and liabilities measured at fair value on a recurring basis based on the
three
-tier fair value hierarchy.
 
   
Level 1
   
Level 2
   
Level 3
   
Total
 
As at June 30, 2020
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Assets
                               
Cash
  $
1,115,332
    $
-
    $
-
    $
1,115,332
 
Long term cash equivalent
   
37,206
     
-
     
-
     
37,206
 
Total assets measured and recorded at fair value
  $
1,152,538
    $
-
    $
-
    $
1,152,538
 
 
   
Level 1
   
Level 2
   
Level 3
   
Total
 
As at December 31, 2019
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Assets
                               
Cash
  $
967,212
    $
-
    $
-
    $
967,212
 
Long term cash equivalent
   
38,412
     
-
     
-
     
38,412
 
Total assets measured and recorded at fair value
  $
1,005,624
    $
-
    $
-
    $
1,005,624