Registration of securities issued in business combination transactions

Note 3 - Revenue from Contracts with Customers - Changes in Contract Assets and Liabilities (Details)

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Note 3 - Revenue from Contracts with Customers - Changes in Contract Assets and Liabilities (Details) - USD ($)
3 Months Ended 12 Months Ended
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2022
Dec. 31, 2021
Contract liabilities, balance $ 72,003 $ 127,091 $ 182,756 $ 165,843 $ 149,692 $ 186,835 $ 186,835  
Contract liabilities added 0 0 0 2,491 87,612 19,280 439,230 $ 359,896
Revenue recognized (45,977) (55,088) (55,665) (130,648) (71,461) (56,423) (443,309) (1,119,945)
Contract liabilities, balance $ 26,026 $ 72,003 $ 127,091 $ 37,686 $ 165,843 $ 149,692 $ 182,756 $ 186,835