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Note 6 - Business Combination, Goodwill and Other Intangible Assets (Details Textual) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021	May 10, 2019
Goodwill, Ending Balance	$ 1,107,000	$ 1,107,000
Prime Bank [Member]
Goodwill, Ending Balance			$ 1,100,000
American Challenger [Member] \| Other Assets [Member]
Deferred Offering Costs	1,900,000
American Challenger [Member] \| Project Expenses [Member]
Business Combination, Acquisition Related Costs	$ 63,000	$ 1,900,000

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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