Note 1a - Nature of Operations, Basis of Presentation and Summary of Significant Accounting Policies (Details Textual)	12 Months Ended
Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) shares
Number of Operating Segments	5
Non Accrual Contractual Due (Day)	90 days
Stock Repurchase Program, Repurchased, Shares (in shares) \| shares	447,108	330,541
Goodwill, Impairment Loss	$ 0	$ 0
Minimum [Member]
Financing Receivable, Individually Evaluated for Impairment	$ 250,000
Minimum [Member] \| Land, Buildings and Improvements [Member]
Property, Plant and Equipment, Useful Life (Year)	4 years
Minimum [Member] \| Furniture Fixtures and Equipment [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Minimum [Member] \| Nonaccrual Loans [Member]
Financing Receivable, Individually Evaluated for Impairment	$ 250,000
Maximum [Member]
Financing Receivable, Collectively Evaluated for Impairment	$ 250,000
Maximum [Member] \| Land, Buildings and Improvements [Member]
Property, Plant and Equipment, Useful Life (Year)	30 years
Maximum [Member] \| Furniture Fixtures and Equipment [Member]
Property, Plant and Equipment, Useful Life (Year)	10 years

Non accrual contractual due.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity under stock repurchase program.

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The balance of financing receivables that were collectively evaluated for impairment.

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The balance of financing receivables that were individually evaluated for impairment.

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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