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Off Balance Sheet Activities (Tables) | 12 Months Ended
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Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract] |
Outstanding Financial Instruments Whose Contract Amounts Represent Credit Risk | At December 31, 2017 and 2016, the following financial instruments were outstanding whose contract amounts represent credit risk:
|  | (In Thousands) |
|  | 2017 |  |  | 2016 |
Commitments to extend credit |  | $ | 237,774 |  |  | $ | 223,534 |
Credit card arrangements |  |  | 20,184 |  |  |  | 18,316 |
Standby letters of credit |  |  | 791 |  |  |  | 875 |

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- Definition Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined) which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13467-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611 + Details
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