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Allowance for Loan Losses (Details 3) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Average loan balance: |  |  |  |
Average investment in impaired loans | $ 985 | $ 1,372 | $ 880 | $ 1,626
Interest income recognized: |  |  |  |
Interest income recognized on a cash basis on impaired loans | 10 | 7 | 15 | 16
Commercial [Member] |  |  |  |
Average loan balance: |  |  |  |
Average investment in impaired loans | 815 | 1,020 | 602 | 1,103
Interest income recognized: |  |  |  |
Interest income recognized on a cash basis on impaired loans | 10 | 4 | 13 | 8
Commercial loans secured by real estate [Member] |  |  |  |
Average loan balance: |  |  |  |
Average investment in impaired loans | 170 | 352 | 278 | 523
Interest income recognized: |  |  |  |
Interest income recognized on a cash basis on impaired loans | $ 0 | $ 3 | $ 2 | $ 8

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- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524 + Details
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- Definition Amount of interest income recognized on a cash-basis method of accounting that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
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