Note 6 - Fair Value Measurements - Financial Assets Measured at Fair Value on Recurring Basis (Details) - Money Market Funds [Member] - Fair Value, Recurring [Member] - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Cash at closing	$ 631,258	$ 58,242
Fair Value, Inputs, Level 1 [Member]
Cash at closing	631,258	58,242
Fair Value, Inputs, Level 2 [Member]
Cash at closing	0	0
Fair Value, Inputs, Level 3 [Member]
Cash at closing	$ 0	$ 0

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant