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Note 2 - Business Combinations - Schedule of Goodwill (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 | May 10, 2018 | Dec. 31, 2017
Balance | $ 1,728,000 |  |
Impairment | 0 |  |
Prime Bank [Member] |  |  |
Balance | $ 1,728,000 | $ 2,392,000 |

X
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