Note 2 - Summary of significant accounting policies: Cash (Policies)	12 Months Ended
Dec. 31, 2025
Policies
Cash	Cash Cash represents cash on hand and demand deposits placed with banks or other financial institutions which are unrestricted as to withdrawal or use and have original maturities less than three months. Restricted cash Cash that is restricted as to withdrawal for use or pledged as security is reported as “Restricted cash” in the consolidated balance sheets. The Company’s restricted cash mainly represents the proceeds received through IPO deposited in the escrow account. It has been released to the company’s account in May 2025. As of December 31, 2025, restricted cash also included approximately $19,000 that was frozen in connection with a legal proceeding. Subsequent to year-end, the legal proceeding was concluded, and the restriction has been released. The Company has recognized the related litigation costs and settlement amounts in its financial statements.

Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-1

Name:	us-gaap_CashAndCashEquivalentsPolicyTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration