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Note 7 - Fair Value Measurements
3 Months Ended
Mar. 31, 2020
Notes to Financial Statements  
Fair Value Disclosures [Text Block]
Note
7
– FAIR VALUE MEASUREMENTS
 
Inputs used to measure fair value are organized into a fair value hierarchy based on the observability of the inputs. Level
1
inputs consist of quoted prices in active markets for identical assets. Level
2
inputs are inputs, other than quoted prices, for similar assets that are observable. Level
3
inputs are unobservable inputs.
 
Recurring Fair Value Measurements
 
Certain of the Company’s assets are reported at fair value in the accompanying balance sheets on a recurring basis. The Company determined the fair value of the available-for-sale debt securities using quoted market prices for securities with similar maturity dates and interest rates. At
March 
31,
2020
and
December 
31,
2019,
the Company’s assets reported at fair value on a recurring basis are summarized as follows:
 
   
March 31, 2020
 
   
Level 1 Inputs
   
Level 2 Inputs
   
Level 3 Inputs
 
Financial Assets:
                       
Available-for-Sale Debt Securities –
                       
U.S. Treasury Bills Maturing in 2020
  $
---
    $
18,582,693
    $
---
 
Equity Securities:
                       
Domestic Equities
   
380,764
     
---
     
---
 
International Equities
   
88,673
     
---
     
---
 
Others
   
5,807
     
---
     
---
 
    $
475,244
    $
18,582,693
    $
---
 
 
 
   
December 31, 2019
 
   
Level 1 Inputs
   
Level 2 Inputs
   
Level 3 Inputs
 
Financial Assets:
                       
Available-for-Sale Debt Securities –
                       
U.S. Treasury Bills Maturing in 2020
  $
---
    $
18,517,910
    $
---
 
Equity Securities:
                       
Domestic Equities
   
364,171
     
---
     
---
 
International Equities
   
110,629
     
---
     
---
 
Others
   
70,275
     
---
     
---
 
    $
545,075
    $
18,517,910
    $
---
 
 
Non-
R
ecurring Fair Value Measurements
 
The Company’s asset retirement obligation annually represents a non-recurring fair value liability. The fair value of the non-financial liability incurred in the
three
months ended
March 
31,
2020
and
2019
was
$4,206
and
$8,352,
respectively, and was calculated using Level
3
inputs. See Note
6
above for more information about this liability and the inputs used for calculating fair value.
 
The impairment loss in the quarter ended
March 
31,
2020
was
$1,312,328
with
none
in
2019.
This also represents non-recurring fair value expense calculated using Level
3
inputs. See Note
8
below for a description of the impairment loss calculation.
 
Fair Value of Financial Instruments
 
The Company’s financial instruments consist primarily of cash and cash equivalents, trade receivables, marketable securities, trade payables and dividends payable. At
March 
31,
2020
and
December 
31,
2019,
the historical cost of cash and cash equivalents, trade receivables, trade payables and dividends payable are considered to be representative of their respective fair values due to the short-term maturities of these items.