Note 4 - Accounts Receivable - Summary of Accounts Receivables (Details) - USD ($)	Jun. 30, 2026	Dec. 31, 2025	Dec. 31, 2024
Trade accounts receivable	$ 5,397,075	$ 3,567,961
Allowance for current expected credit losses	(166,238)	(137,969)	$ (637,556)
Total accounts receivable, net	$ 5,230,837	$ 3,429,992

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
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Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
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