Note 15 - Subsequent Events	12 Months Ended
Dec. 31, 2022
Notes to Financial Statements
Subsequent Events [Text Block]	15. Subsequent Events On February 1, 2023, the Company filed Form 15 with the Securities and Exchange Commission. The purpose of this filing is to give notice of termination of registration under Section 12(g) of the Securities and Exchange Act of 1934, as amend (the "Exchange Act" and suspension of duty to file reports under Sections 13 and 15(d) of the Exchange Act The Form 15 does not become effective until 90 days after its filing (unless the SEC allows it to become effective earlier). Robert L.G.Watson, the Company's President and Principal Executive Officer, resigned from his position effective March 1, 2023.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI https://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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