v3.26.1
Note 4 - Investments (Tables)
3 Months Ended
Mar. 31, 2026
Notes Tables  
Marketable Securities [Table Text Block]
  

March 31, 2026

          

Cumulative

          

Unrealized

  

Fair Value

 

Basis

 

Gain

Equity securities

 $50  $34  $16 

Total

 $50  $34  $16 
  

December 31, 2025

          

Cumulative

          

Unrealized

  

Fair Value

 

Basis

 

Gain

Equity securities

 $36  $34  $2 

Total

 $36  $34  $2 
Investment Income [Table Text Block]
  

Three Months Ended March 31,

  

2026

 

2025

Interest on cash and cash equivalents

 $389  $417 

Net investment income

 $389  $417 
Gain (Loss) on Securities [Table Text Block]
  

Three Months Ended March 31,

  

2026

 

2025

Marketable securities

 $14  $3 

Net gains

 $14  $3