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Summary of Significant Accounting Policies (Details) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Summary of Significant Accounting Policies [Line Items]      
Expenditures for repairs and improvements $ 10,000    
Contract costs receivable 296,000 $ 296,000  
Customer deposits 1,115,000 3,557,000  
Backlog relating to remaining performance obligations 117,900,000    
Freight out in operating expenses 67,000 87,000  
Long-Term Agreements [Member]      
Summary of Significant Accounting Policies [Line Items]      
Backlog relating to remaining performance obligations 117,900,000    
Customer Deposits [Member]      
Summary of Significant Accounting Policies [Line Items]      
Customer deposits     $ 781,000
Customer deposits recognized revenue 2,442,000 461,000  
Directors [Member]      
Summary of Significant Accounting Policies [Line Items]      
Stock compensation expense 157,000 200,000  
Employees [Member]      
Summary of Significant Accounting Policies [Line Items]      
Stock compensation expense $ 640,000 $ 282,000