Note 4 - Stockholder's Equity (Details) - USD ($)	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Details
Proceeds from sale of common stock	$ 0	$ 49,930

The cash inflow from the additional capital contribution to the entity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (a)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-14

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration