Annual report [Section 13 and 15(d), not S-K Item 405]

Product warranty (Tables)

v3.25.1
Product warranty (Tables)
12 Months Ended
Dec. 31, 2024
Guarantees [Abstract]  
Schedule of Product Warranty Reserve
Changes in our warranty reserve were as follows:
Warranty reserve, December 31, 2022 $ 137,800 
Warranty provision for units sold 286,391 
Costs of warranty incurred (282,191)
Warranty reserve, December 31, 2023 142,000 
Warranty provision for units sold 257,898 
Costs of warranty incurred (276,898)
Warranty reserve, December 31, 2024 $ 123,000