Note 6 - Contract Assets and Contract Liabilities - Contract Assets and Liabilities (Details) - USD ($) |
6 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
|
| Cost incurred | $ 1,751,121 | $ 1,750,757 |
| VAT | 243,777 | 234,984 |
| Other receivables | 19,005 | 10,826 |
| Prepayments | (1,771,943) | (1,403,702) |
| Contract with Customer, Asset (Liability), Net | 241,960 | 592,865 |
| Contract assets | 340,260 | 733,851 |
| Contract liabilities | (98,300) | (140,986) |
| Contract with Customer, Asset (Liability), Net | $ 241,960 | $ 592,865 |
| X | ||||||||||
- Definition The amount of contract with customer classified as assets, net of liabilities. No definition available.
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| X | ||||||||||
- Definition The amount of costs incurred in a contract with customer. No definition available.
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| X | ||||||||||
- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of revenue recognized from performance obligation satisfied or partially satisfied in previous reporting periods. Includes, but is not limited to, change in transaction price. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount due from parties in nontrade transactions, classified as other. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Carrying amount as of the balance sheet date of value added taxes due either from customers arising from sales on credit terms, or as previously overpaid to tax authorities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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