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Note 18 - Regulatory Matters (Tables) | 12 Months Ended
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Dec. 31, 2018
Notes Tables |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] |
|  | Actual |  | Minimum for Capital Adequacy Purposes with Capital Conservation Buffer: |  | Minimum to be Well Capitalized under Prompt Corrective Action Provisions:
(Dollars in thousands) |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio
As of December 31, 2018 : |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total capital (to risk weighted assets) |  | $ | 79,406 |  |  |  | 14.62 | % |  | $ | 53,626 |  |  |  | 9.88 | % |  | $ | 54,304 |  |  |  | 10.00 | %
Tier 1 capital (to risk weighted assets) |  | $ | 75,341 |  |  |  | 13.87 | % |  | $ | 42,765 |  |  |  | 7.88 | % |  | $ | 43,444 |  |  |  | 8.00 | %
Common equity Tier 1 capital (to risk weighted assets) |  | $ | 75,341 |  |  |  | 13.87 | % |  | $ | 34,619 |  |  |  | 6.38 | % |  | $ | 35,298 |  |  |  | 6.50 | %
Tier 1 capital (to average assets) |  | $ | 75,341 |  |  |  | 9.57 | % |  | $ | 31,478 |  |  |  | 4.00 | % |  | $ | 39,347 |  |  |  | 5.00 | %
As of December 31, 2017 : |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total capital (to risk weighted assets) |  | $ | 75,704 |  |  |  | 14.49 | % |  | $ | 48,314 |  |  |  | 9.25 | % |  | $ | 52,231 |  |  |  | 10.00 | %
Tier 1 capital (to risk weighted assets) |  | $ | 72,070 |  |  |  | 13.80 | % |  | $ | 37,868 |  |  |  | 7.25 | % |  | $ | 41,785 |  |  |  | 8.00 | %
Common equity Tier 1 capital (to risk weighted assets) |  | $ | 72,070 |  |  |  | 13.80 | % |  | $ | 30,033 |  |  |  | 5.75 | % |  | $ | 33,950 |  |  |  | 6.50 | %
Tier 1 capital (to average assets) |  | $ | 72,070 |  |  |  | 9.67 | % |  | $ | 29,812 |  |  |  | 4.00 | % |  | $ | 37,266 |  |  |  | 5.00 | %

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- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1G -URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958577-112826 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84167132&loc=d3e65071-112826 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958568-112826 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958570-112826 + Details
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