Note 12 - ESOP (Details Textual) - USD ($)  | 
3 Months Ended | |
|---|---|---|
Mar. 31, 2022  | 
Mar. 31, 2021  | 
|
| Employee Stock Ownership Plan (ESOP), Shares in ESOP, Total (in shares) | 431,836 | |
| Employee Stock Ownership Plan (ESOP), Weighted Average Purchase Price of Shares Purchased (in dollars per share) | $ 10 | |
| Employee Stock Ownership Plan (ESOP), Shares Contributed to ESOP (in shares) | 0 | |
| Employee Stock Ownership Plan (ESOP), Compensation Expense | $ 54,000 | $ 0 | 
| X | ||||||||||
- Definition The amount of plan compensation cost recognized during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
- Definition This item represents the number of shares provided to the Employee Stock Ownership Plan (ESOP) during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
- Definition Sum of the allocated, committed-to-be-released and suspense shares of the entity held by the plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
- Definition Weighted average purchase price of capital shares purchased through an employee stock ownership plan. No definition available. 
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