Schedule of accounts receivable, net (Details) - USD ($)	Jun. 30, 2025	Dec. 31, 2024	Dec. 31, 2023
Credit Loss [Abstract]
Accounts receivable	$ 29,942,050	$ 21,808,030
Allowance for doubtful accounts	(1,570,348)	(1,486,333)	$ (1,371,341)
Total, net	$ 28,371,702	$ 20,321,697

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(1))
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
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