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Note 5 - Short-term Investments
12 Months Ended
Dec. 31, 2021
Notes to Financial Statements  
Cash, Cash Equivalents, and Short-term Investments [Text Block]

5.

SHORT-TERM INVESTMENTS

(In Thousands)

 

  

December 31

 
  

2021

  

2020

 
         

Time deposits with original maturity of more than 3 months but less than 12 months

 $29,186  $29,054