v3.26.1
Marketable Securities (Details)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
item
Dec. 31, 2024
USD ($)
Investments            
Amortized Cost $ 4,831,000   $ 4,831,000   $ 15,818,000 $ 40,890,000
Gross Unrealized Gain         19,000 24,000
Gross Unrealized Loss (3,000)   (3,000)   (1,000) (20,000)
Estimated Fair Value 4,828,000   4,828,000   15,836,000 40,894,000
Gross realized gains 0 $ 0 1,000 $ 0 0 0
Gross realized loss 0 $ 0   $ 0 $ 0 0
Number of investment whose position which was not in continuous unrealized loss position for more than twelve months | item         1  
Fair market value of investments in unrealized loss position 4,800,000   4,800,000   $ 2,200,000  
Interest income         100,000 300,000
Unrealized losses in a continuous loss position for more than 12 months 0   0      
Accrued interest receivable $ 100,000   $ 100,000   $ 300,000  
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Current, Statement of Financial Position [Extensible Enumeration] Prepaid Expense and Other Assets, Current   Prepaid Expense and Other Assets, Current   Prepaid Expense and Other Assets, Current  
Cost Maturities:            
Within 1 year $ 4,831,000   $ 4,831,000   $ 14,593,000  
Over 1 year         1,225,000  
Total investments available for sale 4,831,000   4,831,000   15,818,000  
Fair Value Maturities:            
Within 1 year 4,828,000   4,828,000   14,607,000  
Over 1 year         1,229,000  
Total investments available for sale 4,828,000   4,828,000   15,836,000  
Corporate bonds            
Investments            
Amortized Cost 4,831,000   4,831,000   15,818,000 32,515,000
Gross Unrealized Gain         19,000 22,000
Gross Unrealized Loss (3,000)   (3,000)   (1,000) (20,000)
Estimated Fair Value $ 4,828,000   $ 4,828,000   $ 15,836,000 32,517,000
U.S. Treasury and Government agencies            
Investments            
Amortized Cost           8,375,000
Gross Unrealized Gain           2,000
Estimated Fair Value           $ 8,377,000