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Note 21 - Business Combinations (Details Textual) |  |  | 12 Months Ended
--- | --- | --- | ---
Jul. 01, 2020 USD ($) shares | Oct. 01, 2019 USD ($) shares | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
County Bank Corp ("County") [Member] |  |  |  |
Number of Branch Offices |  | 14 |  |
Number of Loan Office |  | 1 |  |
Community Shores Bank Corp ("Community Shores") [Member] |  |  |  |
Number of Branch Offices | 4 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets, Total | $ 244,535,000 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Total Loans | 174,800,000 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Total Deposits | $ 227,832,000 |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares | 524,139 |  |  |
Payments to Acquire Businesses, Gross | $ 5,390,000 |  |  |
Business Combination, Consideration Transferred, Total | $ 20,881,000 |  |  |
Business Combination, Provisional Information Initial Accounting Incomplete Adjustment, Loans |  |  | $ 828,000 |
Business Combination, Provisional Information Initial Accounting Incomplete Adjustment, Other Assets |  |  | (268,000) |
Goodwill, Purchase Accounting Adjustments |  |  | $ (560,000) |
County Bank Corp ("County") [Member] |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets, Total |  | $ 672,762,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Total Loans |  | 424,000,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Total Deposits |  | 573,601,000 |  |
Business Combination, Consideration Transferred, Total |  | $ 107,945,000 |  |
Business Combination, Provisional Information Initial Accounting Incomplete Adjustment, Loans |  |  |  | $ (238,000)
Goodwill, Purchase Accounting Adjustments |  |  |  | (276,000)
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Liabilities |  |  |  | $ (502,000)
County Bank Corp ("County") [Member] | Common Stock [Member] |  |  |  |
Stock Issued During Period, Shares, Acquisitions (in shares) | shares |  | 3,603,872 |  |
Stock Issued During Period, Value, Acquisitions |  | $ 108,000,000 |  |

X
- Definition This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to loans assumed in connection with a business combination for which the initial accounting was incomplete. + References No definition available. + Details
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- Definition This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to other assets assumed in connection with a business combination for which the initial accounting was incomplete. + References No definition available. + Details
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- Definition This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to other liabilities assumed in connection with a business combination for which the initial accounting was incomplete. + References No definition available. + Details
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- Definition The amount of liability arising from total deposits. + References No definition available. + Details
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- Definition Represents total loans for business combination recognized identifiable assets acquired and liabilities. + References No definition available. + Details
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- Definition Represents number of branch office. + References No definition available. + Details
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- Definition Represents information related to number of loan office. + References No definition available. + Details
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- Definition Number of shares of equity interests issued or issuable to acquire entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI https://asc.fasb.org/extlink&oid=126975305&loc=d3e6927-128479 + Details
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=126966197&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126975305&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI https://asc.fasb.org/extlink&oid=126966197&loc=d3e6578-128477 + Details
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- Definition Amount of assets acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=128092470&loc=d3e4845-128472 + Details
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- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting 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. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI https://asc.fasb.org/extlink&oid=123586518&loc=d3e961-128460 + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=126975305&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585 + Details
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