v3.26.3
Summary of Significant Accounting Policies (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Summary of Significant Accounting Policies [Line Items]                  
Restricted cash             $ 3,930,000 $ 0  
Customer deposits $ 3,464,000       $ 3,464,000   391,000 1,115,000  
Recognized revenue 51,000   $ 142,000   151,000 $ 673,000 724,000 2,442,000 $ 3,557,000
Backlog relating to remaining performance obligations 139,700,000       139,700,000        
Stock-based compensation expense for employees 45,000 $ 950,000 157,000 $ 435,000     939,000 640,000  
Stock-based compensation for directors 14,000 $ 14,000 39,000 $ 39,000     108,000 157,000  
Stock-Based compensation forfeiture adjustment 125,000   0   125,000 0      
Expenditures for repairs and improvements             10,000    
Contract costs receivable             296,000  
Freight expenses             52,000 67,000  
Long-Term Agreements [Member]                  
Summary of Significant Accounting Policies [Line Items]                  
Backlog relating to remaining performance obligations 139,700,000       139,700,000   136,800,000    
Share-Based Payment Arrangement, Employee [Member]                  
Summary of Significant Accounting Policies [Line Items]                  
Stock-based compensation expense for employees 37,000   157,000   572,000 592,000 939,000 640,000  
Director [Member]                  
Summary of Significant Accounting Policies [Line Items]                  
Stock-based compensation for directors $ 22,000   $ 39,000   $ 451,000 $ 78,000 $ 108,000 $ 157,000