Note 8 - Employee Benefits (Details Textual) - USD ($)	9 Months Ended	12 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Employee Stock Ownership Plan (ESOP), Number of Allocated Shares (in shares)	350,000
Employee Stock Ownership Plan (ESOP), Weighted Average Purchase Price of Shares Purchased (in dollars per share)	$ 10.00
Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP	$ 92,080	$ 5,324
Employee Stock Ownership Plan (ESOP), Compensation Expense	$ 292,220	$ 271,165
Employee Stock Ownership Plan (ESOP), Number of Committed-to-be-Released Shares (in shares)	17,530		17,530
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	3 years
Share-Based Payment Arrangement, Expense	$ 151,575		$ 186,897
Restricted Stock Units (RSUs) [Member] \| Share-Based Payment Arrangement, Tranche One [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage	0.33%

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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This item represents the amount of cash contributions during the period made by the entity to the Employee Stock Ownership Plan (ESOP).

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The amount of plan compensation cost recognized during the period.

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The shares or units in an ESOP trust that have been assigned to individual participant accounts based on a known formula. IRS rules require allocations to be nondiscriminatory generally based on compensation, length of service, or a combination of both. For any particular participant such shares or units may be vested, unvested, or partially vested.

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The shares that, although not legally released, will be released by a future scheduled and committed debt service payment and will be allocated to employees for service rendered in the current accounting period. The ESOP documents typically define the period of service to which the shares relate. ESOP shares are released to compensate employees directly, to settle employer liabilities for other employee benefits, and to replace dividends on allocated shares that are used for debt service.

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Weighted average purchase price of capital shares purchased through an employee stock ownership plan.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Percentage of vesting of award under share-based payment arrangement.

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