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Note 1 - Summary of Significant Accounting Policies - Contract Assets and Liabilities (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Cost incurred $ 3,492,545 $ 3,225,728
Unbilled project deliveries 547,047 582,557
VAT 184,150 329,980
Other receivables 173,945 92,619
Prepayments (2,026,550) (1,688,427)
Deferred Revenue (76,137) (33,360)
Contract with Customer, Asset (Liability), Net 2,295,000 2,509,097
Contract assets 2,848,985 2,891,744
Contract liabilities (553,985) (382,647)
Contract with Customer, Asset (Liability), Net $ 2,295,000 $ 2,509,097