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Fair Value
9 Months Ended
Sep. 30, 2020
Fair Value [Abstract]  
Fair Value
7.
Fair Value

The carrying value of financial instruments including cash and cash equivalents, accounts receivable and accounts payable approximates fair values due to the short-term nature of these instruments.  Fair value estimates are made at a specific point in time, based on relevant market information.

The FASB Codification defines fair value as the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. On a quarterly basis, the Company measures at fair value certain financial assets, including cash equivalents. Accounting standards specify a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. Observable inputs reflect data obtained from independent sources, while unobservable inputs reflect the Company’s market assumptions. These two types of inputs have created the following fair-value hierarchy:

Level 1 – quoted prices in active markets for identical assets or liabilities;
Level 2 – inputs, other than the quoted prices in active markets, that are observable either directly or indirectly;
Level 3 – unobservable inputs based on the Company’s own assumptions.

Accounting standards permit companies, at their option, to measure certain financial instruments and other eligible items at fair value. The Company has elected not to apply the fair value option to existing eligible items beyond what is required by US GAAP.

The following tables present the fair value hierarchy for those assets measured at fair value on a recurring basis (U.S. dollars in thousands):

 
Fair Value at September 30, 2020
 
   
Level 1
   
Level 2
   
Level 3
   
Total
 
Financial assets (liabilities):
                       
Cash equivalents and current investments
 
$
45,552
   
$
   
$
   
$
45,552
 
Other long-term assets
   
1,344
     
     
     
1,344
 
Derivative financial instruments asset
   
     
472
     
     
472
 
Life insurance contracts
   
     
     
41,328
     
41,328
 
Derivative financial instruments liability
   
     
(76
)
   
     
(76
)
Total
 
$
46,896
   
$
396
   
$
41,328
   
$
88,620
 

 
Fair Value at December 31, 2019
 
   
Level 1
   
Level 2
   
Level 3
   
Total
 
Financial assets:
                       
Cash equivalents and current investments
 
$
54,642
   
$
   
$
   
$
54,642
 
Other long-term assets
   
3,216
     
     
     
3,216
 
Life insurance contracts
   
     
     
41,707
     
41,707
 
Total
 
$
57,858
   
$
   
$
41,707
   
$
99,565
 

See Note 9 - Derivatives and Hedging Activities, for more information on derivative financial instruments.

The following table provides a summary of changes in fair value of the Company’s Level 3 marketable securities (U.S. dollars in thousands):

Beginning balance at January 1, 2020
 
$
41,707
 
Actual return on plan assets
   
(379
)
Purchase and issuances
   
 
Sales and settlements
   
 
Transfers into Level 3
   
 
Ending balance at September 30, 2020
 
$
41,328