Note 4 - Other receivables and other current assets, net: Movements Of Allowance For Credit Losses (Details) - USD ($) |
12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Details | |||||||
| Allowance for Credit Loss, Receivable, Other, Current | $ 320,155 | $ 278,776 | $ 252,947 | $ 320,155 | $ 278,776 | $ 252,947 | $ 239,594 |
| Other Receivable And Other Current Assets Credit Loss Expense Reversal | 28,384 | 38,690 | 20,247 | 28,384 | 38,690 | 20,247 | |
| OtherReceivableAndOtherCurrentAssetsAllowanceForCreditLossForeignCurrencyTranslation | $ 12,995 | $ (12,861) | $ (6,894) | $ 12,995 | $ (12,861) | $ (6,894) | |