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Accrued Expenses (Details 1) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Accrued Expenses    
Balance at beginning of period, Accrued warranty $ 192,000 $ 195,000
Claims satisfied 0 (3,000)
Balance at end of period, Accrued warranty $ 192,000 $ 192,000