The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Amount of realized and unrealized gain (loss) on investment.

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The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

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The cash outflow associated with the purchase of all investments (debt, security, other) during the period.

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Note 3 - Investments (Details Textual) - USD ($)	3 Months Ended			6 Months Ended
Note 3 - Investments (Details Textual) - USD ($)	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Equity Method Investments	$ 3,494,000			$ 3,494,000
Gain (Loss) on Investments	391,000	$ (260,000)		686,000	$ (157,000)
Gain (Loss) on Investments	(391,000)	$ 260,000		(686,000)	$ 157,000
Long-Term Investments, Total	$ 4,494,000			$ 4,494,000		$ 5,180,000
Privately-Held Identity and Professional Services Company With Ties to the FinTech Industry [Member]
Equity Method Investment, Ownership Percentage	28.00%			28.00%
Privately Held Company Providing Supply Chain and Receivables Financing [Member]
Payments to Acquire Investments, Total			$ 1,000,000
Long-Term Investments, Total	$ 1,000,000			$ 1,000,000