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Note 1 - Summary of Significant Accounting Policies - Contract Assets and Liabilities (Details) - USD ($)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Cost incurred $ 3,225,728 $ 3,860,179
Unbilled project deliveries 582,557 950,105
VAT 329,980 229,006
Other receivables 92,619 45,814
Prepayments (1,688,427) (3,363,039)
Deferred Revenue (33,360) (118,327)
Contract with Customer, Asset (Liability), Net 2,509,097 1,603,738
Contract assets 2,891,744 2,253,295
Contract liabilities (382,647) (649,557)
Contract with Customer, Asset (Liability), Net $ 2,509,097 $ 1,603,738