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Note 10 - Proposed Acquisition of Liberty Bancshares (Details Textual) - $ / shares | Jun. 30, 2022 | May 26, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Common Stock, No Par Value (in dollars per share) | $ 0 |  | $ 0
Merger Agreement, Liberty Bancshares, Inc. (“Liberty”) Will Merge with and into Merger Sub (the “Merger”) [Member] |  |  |
Common Stock, No Par Value (in dollars per share) |  | $ 0 |
The Right to Receive, Without Interest, Shares of the Common Stock (in shares) |  | 2.752 |
Merger Agreement, Liberty Bancshares, Inc. (“Liberty”) Will Merge with and into Merger Sub (the “Merger”) [Member] | Liberty Bancshares Inc [Member] | Voting Common Stock [Member] |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) |  | $ 1.25 |
Merger Agreement, Liberty Bancshares, Inc. (“Liberty”) Will Merge with and into Merger Sub (the “Merger”) [Member] | Liberty Bancshares Inc [Member] | Nonvoting Common Stock [Member] |  |  |
Common Stock, No Par Value (in dollars per share) |  | $ 0 |

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