XML 49 R35.htm IDEA: XBRL DOCUMENT v3.24.1
Schedule of Valuation and Qualifying Accounts (Details) - USD ($)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
SEC Schedule, 12-09, Allowance, Credit Loss    
Balance at beginning of year $ 160,000 $ 170,000
Charges to statement of operations 13,804 (1,660)
Write-offs (13,804) (8,340)
Balance at end of year 160,000 160,000
SEC Schedule, 12-09, Reserve, Inventory    
Balance at beginning of year 621,000 612,000
Charges to statement of operations 143,233 17,070
Write-offs (223,233) (8,070)
Balance at end of year $ 541,000 $ 621,000