v3.25.1
Note 4 - Investments (Tables)
3 Months Ended
Mar. 31, 2025
Notes Tables  
Investment [Table Text Block]
  

March 31, 2025

  

December 31, 2024

 
      

Cost/Amortized

      

Cost/Amortized

 
  

Fair Value

  

Cost, Net

  

Fair Value

  

Cost, Net

 

U.S. government and agency securities, held-to-maturity (1)

 $-  $-  $1,000  $1,000 

Investment in limited partnership, at net asset value (2)

  1,976   1,976   2,183   2,183 

Total investments

 $1,976  $1,976  $3,183  $3,183 
Investment Income [Table Text Block]
  

For the Three Months Ended

 
  

March 31, 2025

  

March 31, 2024

 
         

Interest on:

        

Cash equivalents

 $93  $103 

Fixed income securities

  1   29 

Dividends on investment in HC Series B Stock

  -   256 

Change in NAV of investment in limited partnership

  (62)  36 

Less: Investment expense

  -   (1)

Net investment income

 $32  $423