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Note 14 - Fair Value Measurement
6 Months Ended
Jun. 30, 2017
Notes to Financial Statements  
Fair Value Disclosures [Text Block]
1
4
. Fair value measurement
 
ASC Topic
820,
Fair Value Measurements and Disclosures”
establishes a valuation hierarchy for disclosure of the inputs to valuation used to measure fair value. This hierarchy prioritizes the inputs into
three
broad levels. Level
1
inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level
2
inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument. Level
3
inputs are unobservable inputs based on the Company's own assumptions used to measure assets and liabilities at fair value. A financial asset or liability's classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.
 
The following table provides a
summary of the fair values of the Company's derivative instrument assets and liabilities measured at fair value on a recurring basis at
June 30, 2017:
 
   
June 30, 2017
 
   
Fair Value Measurement Using
 
 
Assets (Liabilities)
 
   
Level 1
   
Level 2
   
Level 3
   
at Fair value
 
                                 
Derivative instrument asset
  $
-
    $
573,378
    $
-
    $
573,378
 
 
 
The following table provides a
summary of the fair values of the Company's derivative instrument assets measured at fair value on a recurring basis as at
December 31, 2016:
 
   
December 31, 2016
 
   
Fair Value Measurement Using
 
 
Assets (Liabilities)
 
   
Level 1
   
Level 2
   
Level 3
   
at Fair value
 
                                 
Derivative instrument asset
  $
-
    $
172,888
    $
-
    $
172,888
 
 
 
The carrying values of cash and cash equivalents, accounts receivable, accounts payable, accreditation fees payable, customer deposits, loan payable and accrued liabilities approximate their fair values due to the relatively short periods to maturity of the instruments.