v3.26.1
Note 4 - Investments in Debt Securities - Amortized Cost and Fair Value of Investments in Debt Securities (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Investment in debt securities, amortized cost $ 10,459   $ 12,316
Investment in debt securities, fair value 10,581 $ 16,212 12,523
Investment in debt securities – balance 12,523 16,330  
Purchases 570 4,927  
Sales at cost (2,460) (5,118)  
Realized gain from sale of investment in debt securities 45 68  
Interest and dividend income 272 341  
Unrealized gain 169 172  
Professional management fees and other fees (19) (24)  
Withdrawals from debt securities (519) (484)  
Investment in debt securities – balance 10,581 16,212  
Less – current portion (6,511) (7,945) (4,917)
Investments in debt securities- long term 4,070 $ 8,267 7,606
US Treasury and Government [Member]      
Investment in debt securities, amortized cost 7,743   9,254
Investment in debt securities, fair value 7,822   9,402
Investment in debt securities – balance 9,402    
Investment in debt securities – balance 7,822    
Corporate Debt Securities [Member]      
Investment in debt securities, amortized cost 2,716   3,062
Investment in debt securities, fair value 2,759   $ 3,121
Investment in debt securities – balance 3,121    
Investment in debt securities – balance $ 2,759