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Note 9 - Deposits (Details) - USD ($) $ in Millions | Dec. 31, 2015 | Dec. 31, 2014
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Note 9 - Deposits (Details) [Line Items] |  |
Time Deposits, $100,000 or More | $ 3.5 | $ 2.7
Related Party Deposit Liabilities | 11.4 | $ 6.1
Peoples Bancorp, Inc. [Member] |  |
Note 9 - Deposits (Details) [Line Items] |  |
Related Party Deposit Liabilities | $ 4.7 |

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- Definition Amount of deposits held by the entity for a related party (entity, shareholder, employee). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition The aggregate amount of domestic and foreign time deposit liabilities (including certificates of deposits, individual retirement accounts and open accounts) in denominations of $100,000 or more. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=50488274&loc=d3e64164-112818 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Industry Guide -Number 3 -Section V -Paragraph A -Subparagraph 4 + Details
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