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Note 5 - Fair Value Measurements
12 Months Ended
Dec. 31, 2021
Notes to Financial Statements  
Fair Value Disclosures [Text Block]

5.     FAIR VALUE MEASUREMENTS

 

Investments by category included in cash equivalents at the end of each period were as follows (in thousands):

 

    

December 31, 2021

  

December 31, 2020

 
  

Fair Value Level1

 

Adjusted Cost

  

Gross Unrealized Losses

  

Fair Value

  

Adjusted Cost

  

Gross Unrealized Losses

  

Fair Value

 

Money market funds

 

Level 1

 $20,711  $  $20,711  $21,042  $  $21,042 

Time deposits

 

Level 2

           5,458      5,458 

Government and municipal debt securities

 

Level 2

  14,006   (2)  14,004   30,280   (5)  30,275 

Corporate debt securities

 

Level 2

  31,863   (16)  31,847   11,621   (6)  11,615 

Total investments

   $66,580  $(18) $66,562  $68,401  $(11) $68,390 

 


1 FASB Topic 820, Fair Value Measurements, establishes a fair value hierarchy that requires the use of observable market data, when available, and prioritizes the inputs to valuation techniques used to measure fair value in the following categories:

Level 1: Quoted market prices in active markets for identical assets or liabilities.

Level 2: Observable market-based inputs or unobservable inputs that are corroborated by market data.

Level 3: Unobservable inputs that are not corroborated by market data.