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Note 1 - Summary of Significant Accounting Policies - Contract Assets and Liabilities (Details) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2022
Dec. 31, 2021
Cost incurred $ 3,602,967 $ 3,381,994
Unbilled project deliveries 667,670 454,158
VAT 383,701 542,255
Other receivables 9,240 60,158
Prepayments (3,082,635) (2,947,736)
Deferred Revenue (137,638) (499,146)
Contract with Customer, Asset (Liability), Net 1,443,305 991,682
Contract assets 2,078,472 1,906,510
Contract liabilities (635,167) (914,828)
Contract with Customer, Asset (Liability), Net $ 1,443,305 $ 991,682