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Note 15 - Shareholders' Equity (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] |
|  | 2016 |
|  | Actual Regulatory Capital |  |  |  |  |  |  |  |  |
|  | Amount |  |  | Ratio |  |  | Minimum Requirement |  |  | To Be Well Capitalized |
|  | (Dollars in Thousands) |
Common equity Tier 1 capital (to risk-weighted assets) |  | $ | 73,433 |  |  |  | 19.01 | % |  |  | 5.125 | % |  |  | 6.50 | %
Tier 1 capital (to risk-weighted assets) |  |  | 73,433 |  |  |  | 19.01 | % |  |  | 6.625 | % |  |  | 8.00 | %
Total capital (to risk-weighted assets) |  |  | 78,279 |  |  |  | 20.26 | % |  |  | 8.625 | % |  |  | 10.00 | %
Tier 1 leverage (to average assets) |  |  | 73,433 |  |  |  | 12.27 | % |  |  | 4.00 | % |  |  | 5.00 | %
|  | 2015 |
|  | Actual Regulatory Capital |  |  |  |  |  |  |  |  |
|  | Amount |  |  | Ratio |  |  | Minimum Requirement |  |  | To Be Well Capitalized |
|  | (Dollars in Thousands) |
Common equity Tier 1 capital (to risk-weighted assets) |  | $ | 71,887 |  |  |  | 22.19 | % |  |  | 4.50 | % |  |  | 6.50 | %
Tier 1 capital (to risk-weighted assets) |  |  | 71,887 |  |  |  | 22.19 | % |  |  | 6.00 | % |  |  | 8.00 | %
Total capital (to risk-weighted assets) |  |  | 75,668 |  |  |  | 23.35 | % |  |  | 8.00 | % |  |  | 10.00 | %
Tier 1 leverage (to average assets) |  |  | 71,887 |  |  |  | 13.02 | % |  |  | 4.00 | % |  |  | 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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