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Note 2 - Liquidity (Details Textual) - USD ($)	1 Months Ended	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents	$ 5,858,000	$ 5,858,000		$ 6,872,000		$ 5,858,000	$ 6,872,000	$ 5,990,000
Working Capital	5,047,000	5,047,000				5,047,000
Net Income (Loss) Attributable to Parent	(2,119,000)	$ (983,000)	$ (1,136,000)	$ (1,049,000)	$ (1,219,000)	(2,119,000)	(2,268,000)
Net Cash Provided by (Used in) Financing Activities	1,478,000					1,478,000	5,969,000
Net Cash Provided by (Used in) Operating Activities	$ (1,610,000)					$ (1,610,000)	$ (2,182,000)

X

- Definition

Positive working capital means that the company is able to pay off its short-term liabilities. Negative working capital means that a company currently is unable to meet its short-term liabilities with its current assets (cash, accounts receivable and inventory).

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X

- Definition

Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, 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.

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Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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