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Commitments, Contingencies and Concentrations of Credit Risk (Tables) | 12 Months Ended
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Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract] |
Supply Commitment [Table Text Block] | The following table provides a summary of financial instruments with off-balance sheet risk at December 31, 2017 and 2016:
|  | 2017 |  |  | 2016 |
|  | (dollars in thousands) |
Commitments under commercial loans and lines of credit |  | $ | 344,142 |  |  | $ | 267,865 |
Home equity and other revolving lines of credit |  |  | 44,483 |  |  |  | 52,788 |
Outstanding commercial mortgage loan commitments |  |  | 254,710 |  |  |  | 263,395 |
Standby letters of credit |  |  | 34,114 |  |  |  | 18,331 |
Overdraft protection lines |  |  | 688 |  |  |  | 733 |
Total |  | $ | 678,137 |  |  | $ | 603,112 |

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- Definition Tabular disclosure of arrangements in which the entity has committed resources to supply goods or services to a customer. May include identification of the goods or services to be furnished, identity of the purchasing party, pricing, effects on pricing for failing to deliver the [minimum] quantities required to be furnished, cancellation rights, and termination provisions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(25)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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