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Note 20 - Regulatory Matters (Tables) | 12 Months Ended
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Dec. 31, 2016
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, 2016 : |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total capital (to risk weighted assets) |  | $ | 71,832 |  |  |  | 14.98 | % |  | $ | 41,354 |  |  |  | 8.625 | % |  | $ | 47,946 |  |  |  | 10.00 | %
Tier I capital (to risk weighted assets) |  | $ | 68,446 |  |  |  | 14.28 | % |  | $ | 31,764 |  |  |  | 6.625 | % |  | $ | 38,357 |  |  |  | 8.00 | %
Common equity Tier I capital (to risk weighted assets) |  | $ | 68,446 |  |  |  | 14.28 | % |  | $ | 24,572 |  |  |  | 5.125 | % |  | $ | 31,165 |  |  |  | 6.50 | %
Tier I capital (to average assets) |  | $ | 68,446 |  |  |  | 9.30 | % |  | $ | 29,447 |  |  |  | 4.00 | % |  | $ | 36,809 |  |  |  | 5.00 | %
As of December 31, 2015 : |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total capital (to risk weighted assets) |  | $ | 67,540 |  |  |  | 16.07 | % |  | $ | 33,624 |  |  |  | 8.00 | % |  | $ | 42,030 |  |  |  | 10.00 | %
Tier I capital (to risk weighted assets) |  | $ | 64,125 |  |  |  | 15.26 | % |  | $ | 25,218 |  |  |  | 6.00 | % |  | $ | 33,624 |  |  |  | 8.00 | %
Common equity Tier I capital (to risk weighted assets) |  | $ | 64,125 |  |  |  | 15.26 | % |  | $ | 18,913 |  |  |  | 4.50 | % |  | $ | 27,319 |  |  |  | 6.50 | %
Tier I capital (to average assets) |  | $ | 64,125 |  |  |  | 12.15 | % |  | $ | 21,110 |  |  |  | 4.00 | % |  | $ | 26,387 |  |  |  | 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958570-112826 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1G -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958577-112826 + Details
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