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Note 2 - Business Combinations (Details Textual) - USD ($) |  |  | 12 Months Ended
--- | --- | --- | ---
May 01, 2019 | Oct. 22, 2018 | Dec. 31, 2019 | Dec. 31, 2018
Payments to Acquire Businesses, Gross |  |  | $ 467,000 | $ 10,043,000
Goodwill, Ending Balance |  |  | $ 16,477,000 | $ 202,000
Planters First Bank [Member] |  |  |  |
Payments to Acquire Businesses, Gross |  | $ 10,200,000 |  |
Goodwill, Ending Balance |  | 202,000 |  |
Business Acquisition, Goodwill, Expected Tax Deductible Amount |  | $ 202,000 |  |
LBC Bancshares, Inc [Member] |  |  |  |
Payments to Acquire Businesses, Gross | $ 15,315,000 |  |  |
Goodwill, Ending Balance | $ 15,734,000 |  |  |
Business Acquisition, Share Price | $ 23.50 |  |  |
Business Acquisition, Number of Shares of Acquiring Entity for Each Share of Acquired Entity | 1.3239 |  |  |
Business Acquistion, Percentage of Shares Receiving Stock Consideration | 55.00% |  |  |
Business Acquistion, Percentage of Shares Receiving Cash Consideration | 45.00% |  |  |
Business Acquisition, Minimum Percentage of Merger Consideration Paid in Stock | 50.00% |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | 1,053,875 |  |  |
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable | $ 18,706,000 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans Receivable | 130,568,000 |  |  |
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums, Total | $ 2,200,000 |  |  |
Loans and Leases Receivable, Discount Percentage | 1.63% |  |  |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value | $ 176,000 |  |  |
PFB Mortgage [Member] |  |  |  |
Payments to Acquire Businesses, Gross | 833,000 |  |  |
Goodwill, Ending Balance | $ 541,000 |  |  |

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