XML 96 R74.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Loans and Allowance for Loan and Lease Losses (Average Recorded Investment Of Impaired Loans And Related Interest Income By Loan Portfolio Class) (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Home Equity [Member] |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Impaired Loans with No Allowance: Average Recorded Investment | $ 90 | $ 66 | $ 101 | $ 53 | $ 75 | $ 107 | $ 29
Impaired Loans with No Allowance: Interest Income Recognized |  |  | 2 |  |  |  |
Impaired Loans with Allowance: Average Recorded Investment |  | 17 |  | 19 | 32 |  | 76
Impaired Financing Receivable, Average Recorded Investment, Total | 90 | 83 | 101 | 72 | 107 | 107 | 105
Impaired Financing Receivable, Interest Income Recognized, Total |  |  | 2 |  |  | 3 |
Commercial Portfolio [Member] | Commercial and Industrial [Member] |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Impaired Loans with No Allowance: Average Recorded Investment | 36 | 11 | 18 | 14 | 9 | 19 | 72
Impaired Loans with Allowance: Average Recorded Investment |  | 59 |  | 61 | 59 | 123 | 93
Impaired Financing Receivable, Average Recorded Investment, Total | 36 | 70 | 18 | 75 | 68 | 142 | 165
Impaired Financing Receivable, Interest Income Recognized, Total |  |  |  |  |  | 205 |
Commercial Portfolio [Member] | Commercial and Industrial [Member] | Receivables Acquired with Deteriorated Credit Quality [Member] |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Impaired Loans with No Allowance: Interest Income Recognized |  |  |  |  |  | 205 |
Commercial Portfolio [Member] | Commercial Real Estate [Member] |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Impaired Loans with No Allowance: Average Recorded Investment | 644 | 960 | 524 | 1,001 | 820 | 1,051 | 1,966
Impaired Loans with No Allowance: Interest Income Recognized |  |  | 279 |  |  | 14 | 346
Impaired Loans with Allowance: Average Recorded Investment | 2,792 | 2,201 | 2,660 | 1,851 | 2,177 | 1,721 | 6,823
Impaired Financing Receivable, Average Recorded Investment, Total | 4,080 | 4,104 | 3,922 | 3,786 | 3,807 | 3,698 | 8,789
Impaired Financing Receivable, Interest Income Recognized, Total | 110 |  | 389 |  | 164 | 364 | 346
Commercial Portfolio [Member] | Commercial Real Estate [Member] | Receivables Acquired with Deteriorated Credit Quality [Member] |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Impaired Loans with No Allowance: Average Recorded Investment | 644 | 943 | 738 | 934 | 810 | 926 |
Impaired Loans with No Allowance: Interest Income Recognized | 110 |  | 110 |  | 164 | 350 |
Commercial Portfolio [Member] | Commercial Real Estate - Construction [Member] |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Impaired Loans with No Allowance: Average Recorded Investment | 473 |  | 313 |  | 124 |  |
Impaired Loans with Allowance: Average Recorded Investment | 240 |  | 144 |  | 48 |  |
Impaired Financing Receivable, Average Recorded Investment, Total | 713 |  | 457 |  | 172 |  |
Residential Portfolio [Member] | Residential Mortgage [Member] |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Impaired Loans with No Allowance: Average Recorded Investment | 860 | 831 | 843 | 777 | 821 | 816 | 541
Impaired Loans with No Allowance: Interest Income Recognized | 7 | 7 | 18 | 9 | 21 | 8 |
Impaired Loans with Allowance: Average Recorded Investment | 66 |  | 40 |  | 14 | 25 |
Impaired Financing Receivable, Average Recorded Investment, Total | 1,252 | 1,208 | 1,233 | 1,152 | 1,213 | 1,241 | $ 541
Impaired Financing Receivable, Interest Income Recognized, Total | 9 | 7 | 18 | 13 | 25 | 8 |
Residential Portfolio [Member] | Residential Mortgage [Member] | Receivables Acquired with Deteriorated Credit Quality [Member] |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Impaired Loans with No Allowance: Average Recorded Investment | 326 | $ 377 | $ 350 | 375 | 378 | 400 |
Impaired Loans with No Allowance: Interest Income Recognized | $ 2 |  |  | $ 4 | $ 4 |  |
Consumer Portfolio [Member] | Home Equity [Member] | Receivables Acquired with Deteriorated Credit Quality [Member] |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Impaired Loans with No Allowance: Interest Income Recognized |  |  |  |  |  | $ 3 |

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableImpairedLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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
Name: | us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of average investment of impaired financing receivables for which there is no 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 17 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524 Reference 2: 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 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of interest income, recognized on cash basis, on financing receivables, for which there is no related allowance for credit losses and are recognized as 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
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of average investment of impaired financing receivables for which there is 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
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_HomeEquityLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=mpb_CommercialAndIndustrialLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReceivablesAcquiredWithDeterioratedCreditQualityAxis=us-gaap_ReceivablesAcquiredWithDeterioratedCreditQualityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_RealEstateLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_ResidentialMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |