XML 56 R46.htm IDEA: XBRL DOCUMENT v3.23.3
Note 7 - Agreements and Commitments - Changes in Warranty Obligations (Details) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Balance $ 898,072 $ 962,313
Warranty costs charged to cost of goods sold 91,609 86,256
Utilization charges against reserve (296,522) (93,653)
Foreign currency effect (3,810) (56,844)
Balance $ 689,349 $ 898,072