Note 15 - Private Offerings of Common Stock (Details Textual) - Private Placement [Member] - USD ($)		1 Months Ended
	Sep. 29, 2023	Aug. 31, 2022
Stock Issued During Period, Shares, New Issues (in shares)	35,000	157,256
Shares Issued, Price Per Share (in dollars per share)	$ 5	$ 12
Proceeds from Issuance of Private Placement	$ 175,000	$ 1,887,000
Chairman and CEO [Member]
Stock Issued During Period, Shares, New Issues (in shares)		50,000
Shares Issued, Price Per Share (in dollars per share)		$ 12
Proceeds from Issuance of Private Placement		$ 600,000