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Note 3 - Business Combination - Estimated Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) | May 10, 2018 | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Goodwill resulting from acquisition |  | $ 2,100,000 |
Prime Bank [Member] |  |  |
Cash consideration | $ 5,596,000 |  |
Contingent consideration | 1,761,000 |  |
Cash and cash equivalents | 1,152,000 |  |
Securities | 35,532,000 |  |
Loans, net of allowance | 21,605,000 |  |
Premises and equipment, net | 6,000 |  |
Other real estate owned | 991,000 |  |
Core deposit intangibles | 552,000 |  |
Other assets | 1,514,000 |  |
Total assets acquired | 61,352,000 |  |
Deposits | 46,184,000 |  |
Borrowings | 9,800,000 |  |
Other liabilities | 111,000 |  |
Total liabilities assumed | 56,095,000 |  |
Identifiable net assets acquired | 5,257,000 |  |
Goodwill resulting from acquisition | $ 2,100,000 |  |

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