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Note 6 - Goodwill and Acquired Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2021
Notes Tables |
Schedule of Goodwill [Table Text Block] |
(Dollars in thousands) |  | 2021 |  |  | 2020 |
Balance, beginning of year |  | $ | 60,506 |  |  | $ | 52,870 |
Goodwill adjustment from merger with County Bank Corp. |  |  | - |  |  |  | (277 | )
Acquired goodwill from merger with Community Shores Bank Corporation |  |  | - |  |  |  | 7,913 |
Goodwill adjustment from merger with Community Shores Bank Corporation |  |  | (560 | ) |  |  | - |
Balance, end of year |  | $ | 59,946 |  |  | $ | 60,506 |
Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] |
|  | 2021 |  |  | 2020 |
|  | Gross |  |  |  |  |  |  | Gross |  |  |  |  |
|  | Carrying |  |  | Accumulated |  |  | Carrying |  |  | Accumulated |
(Dollars in thousands) |  | Amount |  |  | Amortization |  |  | Amount |  |  | Amortization |
Core deposit intangible |  | $ | 7,120 |  |  | $ | 3,158 |  |  | $ | 7,120 |  |  | $ | 1,851 |
Finite-lived Intangible Assets Amortization Expense [Table Text Block] |
2022 |  | $ | 1,153 |
2023 |  |  | 955 |
2024 |  |  | 757 |
2025 |  |  | 560 |
2026 |  |  | 362 |
Thereafter |  |  | 175 |
Total |  | $ | 3,962 |

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- Definition Tabular disclosure of the characteristics, including initial carrying value, residual amount, weighted average useful life, of finite-lived intangible assets acquired during the period by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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