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Loans and Leases (Details Narrative) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2016 USD ($) | Sep. 30, 2016 USD ($) | Dec. 31, 2016 USD ($) banking_office subsidiary_bank | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($)
Business Acquisition [Line Items] |  |  |  |  |
Initial rate below the fully indexed rate, percent (less than) |  |  | 0.01% |  |
Sale of residential mortgage loans |  |  | $ 3,900,000 | $ 3,200,000 | $ 19,900,000
Net gains on sale of residential mortgage loans |  |  | 95,000 | 54,000 | 362,000
Mortgage servicing assets added during the period |  |  | 21,000 | 18,000 | 146,000
Amortization of mortgage servicing assets |  |  | 157,000 | 146,000 | 149,000
Residentail mortgage loans serviced |  |  | 115,300,000 | 135,900,000 |
Mortgage servicing rights, amortized cost |  |  | 758,000 | 900,000 |
Mortgage servicing rights (MSR) impairment |  |  |  | 0 |
Loans held for sale |  |  | 0 | 546,000 |
Residential mortgage loans used to secure advances from FHLB |  |  | $ 365,000,000 | 250,000,000 |
Number of subsidiary banks | subsidiary_bank |  |  | 3 |  |
Interest income on nonaccrual loans |  |  | $ 1,000,000 | $ 1,200,000 | $ 1,700,000
Loans and leases receivable, impaired, commitments to lend to nonperforming loans |  |  | $ 0 |  |
LTV 80 to 100 Percent |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Loan to value - fixed rate loans (percent) |  |  | 80.00% |  |
Loan to value - adjusted rate loans (percent) |  |  | 85.00% |  |
Loan to value - private mortgage insurance (percent) |  |  | 78.00% |  |
VIST Financial Corp. (VIST Financial) |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Agreement termination pre-tax expense | $ 313,000 | $ 313,000 |  |  |
Tompkins, Cayuga, Cortland and Schuyler Counties, New York |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Number of banking offices | banking_office |  |  | 14 |  |
Genesee Valley Region, New York State |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Number of banking offices | banking_office |  |  | 17 |  |
Putman County, New York |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Number of banking offices | banking_office |  |  | 5 |  |
Dutchess County, New York |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Number of banking offices | banking_office |  |  | 3 |  |
Westchcester County, New York |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Number of banking offices | banking_office |  |  | 6 |  |
Southeastern Pennsylvania |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Number of banking offices | banking_office |  |  | 21 |  |

X
- Definition Refers to agreement termination pretax expenses incurred during the period. + References No definition available. + Details
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- Definition Loan-to-value (LTV) ratio for adjustable rate loans. + References No definition available. + Details
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- Definition Loan-to-value (LTV) ratio for fixed rate loans. + References No definition available. + Details
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- Definition Loan-to-value (LTV) ratio for loans requiring private mortgage insurance that reduced ltv exposure. + References No definition available. + Details
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- Definition Loans and Leases Receivable, Impaired, Commitments To Lend To Nonperforming Loans + References No definition available. + Details
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- Definition This is the average principal amount (during the year) of the securitized and unsecuritized financial assets. + References No definition available. + Details
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- Definition The periodic amortization (in proportion to and over the period of estimated net servicing income or loss) of capitalized servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 4 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=68078379&loc=d3e122739-111746 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- 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
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- Definition Amount of the collateral pledged in support of federal home loan bank advances outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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- Definition The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- Definition Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18794-111554 + Details
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- Definition Amount, after allowance for bad debt, of other loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522 + Details
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- Definition The adjustment to the carrying value of the rights retained or purchased to service mortgages. These adjustments are made when the estimate of the fair value is changed. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 4 -Subparagraph (a)(6),(7) -URI http://asc.fasb.org/extlink&oid=68078379&loc=d3e122739-111746 + Details
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- Definition The cash inflow from sales of loans that are secured with real estate mortgages and are held with the intention to resell in the near future. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3461-108585 + Details
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- Definition Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7524895&loc=d3e120260-111741 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122492-111745 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=68078379&loc=d3e122739-111746 + Details
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- Definition Amount of additions from purchases, assumption or transfer to contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 4 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=68078379&loc=d3e122739-111746 + Details
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