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Loans - Average Recorded Investment and Interest Recognized on Impaired Loans (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, Average Recorded Investment | $ 21,918 | $ 20,837
Impaired Financing Receivable, Interest Income, Cash Basis Method | 210 | 203
Real Estate | Commercial |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, Average Recorded Investment | 17,751 | 15,940
Impaired Financing Receivable, Interest Income, Cash Basis Method | 150 | 159
Real Estate | One-to-four family residential mortgage |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, Average Recorded Investment | 2,672 | 3,218
Impaired Financing Receivable, Interest Income, Cash Basis Method | 34 | 27
Real Estate | Multifamily |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, Average Recorded Investment | 1,364 | 1,453
Impaired Financing Receivable, Interest Income, Cash Basis Method | 25 | 16
Real Estate | Home equity and lines of credit |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, Average Recorded Investment | 60 | 68
Impaired Financing Receivable, Interest Income, Cash Basis Method | 1 | 1
Real Estate | Home equity and lines of credit | Substandard |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment | 33 | 35
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method | 1 | 0
Real Estate | Home equity and lines of credit | Pass |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment | 27 | 33
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method | 0 | 1
Commercial and Industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, Average Recorded Investment | 71 | 158
Impaired Financing Receivable, Interest Income, Cash Basis Method | 0 | 0
Commercial and Industrial | Substandard |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment | 50 | 134
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method | 0 | 0
Commercial and Industrial | Special Mention |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment | 21 | 24
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method | 0 | 0
Less Than 35% LTV | Real Estate | Multifamily | Substandard |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment | 100 | 152
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method | 1 | 1
Equal to or Greater than 35% LTV | Real Estate | Commercial | Substandard |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment | 11,604 | 9,718
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method | 72 | 75
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment | 259 | 0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method | 0 | 0
Equal to or Greater than 35% LTV | Real Estate | Commercial | Pass |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment | 5,888 | 5,479
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method | 78 | 64
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment | 0 | 743
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method | 0 | 20
Equal to or Greater than 35% LTV | Real Estate | Multifamily | Substandard |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment | 1,227 | 622
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method | 20 | 11
Equal to or Greater than 35% LTV | Real Estate | Multifamily | Pass |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment | 37 | 679
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method | 4 | 4
Less Than 60% LTV | Real Estate | One-to-four family residential mortgage | Substandard |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment | 240 | 252
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method | 3 | 1
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment | 502 | 837
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method | 5 | 4
Less Than 60% LTV | Real Estate | One-to-four family residential mortgage | Pass |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment | 1,677 | 1,183
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method | 22 | 13
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment | 0 | 409
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |  | 2
Equal to or Greater than 60% LTV | Real Estate | One-to-four family residential mortgage | Substandard |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment | 125 | 134
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method | 3 | 3
Equal to or Greater than 60% LTV | Real Estate | One-to-four family residential mortgage | Pass |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment | 128 | 269
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method | 1 | 4
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment | 0 | 134
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method | $ 0 | $ 0

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