XML 159 R111.htm IDEA: XBRL DOCUMENT v3.26.1
Schedule of Contract liabilities (Details) - USD ($)
Dec. 31, 2025
Dec. 31, 2024
Notes and other explanatory information [abstract]    
Contract liabilities - receipts in advance $ 60,906 $ 107,786
Revenue recognized from beginning contract liabilities $ 106,906 $ 276,210