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Note 1 - Summary of Significant Accounting Policies - Contract Assets and Liabilities (Details) - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2023
Dec. 31, 2022
Cost incurred $ 4,018,416 $ 3,860,179
Unbilled project deliveries 639,790 950,105
VAT 448,695 229,006
Other receivables 96,919 45,814
Prepayments (3,620,906) (3,363,039)
Deferred Revenue (54,713) (118,327)
Contract with Customer, Asset (Liability), Net 1,528,201 1,603,738
Contract assets 2,406,402 2,253,295
Contract liabilities (878,201) (649,557)
Contract with Customer, Asset (Liability), Net $ 1,528,201 $ 1,603,738