v3.26.1
Note 2 - Basis of Presentation and Recent Accounting Pronouncements (Tables)
6 Months Ended
Jun. 30, 2026
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
  

Fair Value

  

Level 1

  

Level 2

  

Level 3

 
                 

Investments in debt securities (short-term)

 $6,511  $5,937  $574  $- 

Investments in debt securities (long-term)

  4,070   2,682   1,388   - 
  

FairValue

  

Level 1

  

Level 2

  

Level 3

 
                 

Investments in debt securities (short-term)

  4,917   4,817   100   - 

Investments in debt securities (long-term)

  7,606   5,481   2,125   -