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v3.23.1

Note 1 - Summary of Significant Accounting Policies - Contract Assets and Liabilities (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Cost incurred | $ 4,338,453 | $ 3,860,179
Unbilled project deliveries | 506,509 | 950,105
VAT | 327,718 | 229,006
Other receivables | 75,804 | 45,814
Prepayments | (3,445,720) | (3,363,039)
Deferred Revenue | (65,701) | (118,327)
Contract with Customer, Asset (Liability), Net | 1,737,063 | 1,603,738
Contract assets | 2,447,668 | 2,253,295
Contract liabilities | (710,604) | (649,557)
Contract with Customer, Asset (Liability), Net | $ 1,737,063 | $ 1,603,738

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