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Loans and Allowance for Lease and Loan Losses (Narrative) (Details) | 12 Months Ended
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Dec. 31, 2019 USD ($) loan | Dec. 31, 2018 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of loan | $ 1,659,000 | $ 1,774,000
Number of loans default | 3 | 3
Loan modified as default | $ 19,000 |
Number of charge off loans | loan | 1 |
Balance of capitalized servicing rights | $ 2,226,000 | $ 2,278,000
Aggregate balances of loans serviced to participants | 4,600,000 | 6,200,000
Aggregate balances of loans serviced to third party | 270,730,000 | 255,892,000
Loans and Leases Receivable, Impaired, Commitment to Lend | 0 | 0
Mortgage Servicing Rights (MSR) Impairment (Recovery) | 0 | 0
Residential Mortgage And Home Equity Loan [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of loan |  | $ 117,000
Number of loans default | loan |  | 2
Residential Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Unpaid principal balances of loans held for sale | $ 2,684,000 | $ 888,000

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- Definition The undiscounted sum of all amounts, including amounts deemed principal, interest, fees, penalties, and other under the loan, owed to the investor at the reporting date, whether or not currently due and whether or not any such amounts have been written or charged off by the investor. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118938799&loc=d3e13503-111538 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=118939070&loc=d3e15032-111544 + Details
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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524 + 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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 4 -Subparagraph (a)(6) -URI http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746 + Details
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