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Revenue Recognition and Contracts with Customers - Company's total revenue by major product lines (Details)
3 Months Ended 12 Months Ended
Dec. 31, 2025
USD ($)
product
Sep. 30, 2025
USD ($)
Jun. 30, 2025
USD ($)
Mar. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Sep. 30, 2024
USD ($)
Jun. 30, 2024
USD ($)
Mar. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Sep. 30, 2023
USD ($)
Jun. 30, 2023
USD ($)
Mar. 31, 2023
USD ($)
Dec. 31, 2025
USD ($)
product
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Disaggregation of Revenue [Line Items]                              
Number of major product lines | product 2                       2    
Revenue $ 2,243,000 $ 1,161,000 $ 1,296,000 $ 1,581,000 $ 1,272,000 $ 1,386,000 $ 1,093,000 $ 2,004,000 $ 1,067,000 $ 2,180,000 $ 4,691,000 $ 4,191,000 $ 6,280,611 $ 5,754,556 $ 12,129,139
Products Sales                              
Disaggregation of Revenue [Line Items]                              
Revenue                         4,676,632 4,487,202 10,760,352
Engineering Services                              
Disaggregation of Revenue [Line Items]                              
Revenue                         $ 1,603,979 $ 1,267,354 $ 1,368,787