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Loans Receivable - Credit Quality Indicators (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | $ 2,629 | $ 4,931
Financing Receivable Credit Quality Indicators |  |
Total loans | 1,313,767 | 1,331,194
One-to-four family residential real estate loans [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 1,398 | 3,179
Financing Receivable Credit Quality Indicators |  |
Total loans | 66,833 | 70,371
One to Four Family Residential Real Estate Loans-Owner occupied [Member] [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 54,302 | 57,169
One-to-four family residential real estate loans - non-owner occupied loans [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 321 | 475
Financing Receivable Credit Quality Indicators |  |
Total loans | 12,531 | 13,202
Multi-family mortgage loans [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 458
Financing Receivable Credit Quality Indicators |  |
Total loans | 634,328 | 619,870
Multi Family Mortgage Loans without wholesale [Member] [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 274,582 | 279,237
Wholesale commercial lending [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 0
Financing Receivable Credit Quality Indicators |  |
Total loans | 359,746 | 340,633
Nonresidential Real Estate Loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 148,601 | 152,442
Land loans [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 0
Financing Receivable Credit Quality Indicators |  |
Total loans | 145 | 172
Commercial loans - Secured [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 0
Financing Receivable Credit Quality Indicators |  |
Total loans | 37,639 | 39,574
Commercial Loans - Municipal loans [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 0
Financing Receivable Credit Quality Indicators |  |
Total loans | 49,711 | 62,489
Commercial Loans - Warehouse Lines [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans |  |
Commercial Loans - Health Care [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 84,914 | 85,343
Commercial loans - other [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 37 | 0
Financing Receivable Credit Quality Indicators |  |
Total loans | 132,535 | 133,185
Commercial Leases - Investment Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 336 | 505
Financing Receivable Credit Quality Indicators |  |
Total loans | 157,215 | 166,209
Consumer loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 1,846 | 1,539
Nonaccrual [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 1,442 | 1,517
Nonaccrual [Member] | One-to-four family residential real estate loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 813 | 993
Nonaccrual [Member] | One-to-four family residential real estate loans - non-owner occupied loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 33 | 254
Nonaccrual [Member] | Multi-family mortgage loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Nonaccrual [Member] | Wholesale commercial lending [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Nonaccrual [Member] | Nonresidential Real Estate Loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 242 | 270
Nonaccrual [Member] | Land loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Nonaccrual [Member] | Commercial loans - Secured [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Nonaccrual [Member] | Commercial Loans - Municipal loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Nonaccrual [Member] | Commercial Loans - Health Care [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 354 | 0
Nonaccrual [Member] | Commercial loans - other [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Nonaccrual [Member] | Commercial Leases - Investment Rated [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Nonaccrual [Member] | Consumer loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Substandard [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 3,735 | 1,028
Substandard [Member] | One-to-four family residential real estate loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 347 | 328
Substandard [Member] | One-to-four family residential real estate loans - non-owner occupied loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 37 | 37
Substandard [Member] | Multi-family mortgage loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 214 | 216
Substandard [Member] | Wholesale commercial lending [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Substandard [Member] | Nonresidential Real Estate Loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 95 | 98
Substandard [Member] | Land loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Substandard [Member] | Commercial loans - Secured [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Substandard [Member] | Commercial Loans - Municipal loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Substandard [Member] | Commercial Loans - Health Care [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 3,033 | 342
Substandard [Member] | Commercial loans - other [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Substandard [Member] | Commercial Leases - Investment Rated [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Substandard [Member] | Consumer loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 9 | 7
Pass [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 1,301,824 | 1,322,359
Pass [Member] | One-to-four family residential real estate loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 52,783 | 55,353
Pass [Member] | One-to-four family residential real estate loans - non-owner occupied loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 12,293 | 12,911
Pass [Member] | Multi-family mortgage loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 274,368 | 279,021
Pass [Member] | Wholesale commercial lending [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 359,746 | 340,633
Pass [Member] | Nonresidential Real Estate Loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 147,984 | 151,793
Pass [Member] | Land loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 145 | 172
Pass [Member] | Commercial loans - Secured [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 32,335 | 34,764
Pass [Member] | Commercial Loans - Municipal loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 49,711 | 62,489
Pass [Member] | Commercial Loans - Health Care [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 81,527 | 85,001
Pass [Member] | Commercial loans - other [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 132,535 | 133,185
Pass [Member] | Commercial Leases - Investment Rated [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 156,569 | 165,508
Pass [Member] | Consumer loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 1,828 | 1,529
Special Mention [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 6,766 | 6,290
Special Mention [Member] | One-to-four family residential real estate loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 359 | 495
Special Mention [Member] | One-to-four family residential real estate loans - non-owner occupied loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 168 | 0
Special Mention [Member] | Multi-family mortgage loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Special Mention [Member] | Wholesale commercial lending [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Special Mention [Member] | Nonresidential Real Estate Loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 280 | 281
Special Mention [Member] | Land loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Special Mention [Member] | Commercial loans - Secured [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 5,304 | 4,810
Special Mention [Member] | Commercial Loans - Municipal loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Special Mention [Member] | Commercial Loans - Health Care [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Special Mention [Member] | Commercial loans - other [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 0 | 0
Special Mention [Member] | Commercial Leases - Investment Rated [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 646 | 701
Special Mention [Member] | Consumer loans [Member] |  |
Financing Receivable Credit Quality Indicators |  |
Total loans | 9 | 3
Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 1,362 | 2,770
Financing Receivables, 30 to 59 Days Past Due [Member] | One-to-four family residential real estate loans [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 559 | 1,380
Financing Receivables, 30 to 59 Days Past Due [Member] | One-to-four family residential real estate loans - non-owner occupied loans [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 141 | 387
Financing Receivables, 30 to 59 Days Past Due [Member] | Multi-family mortgage loans [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 458
Financing Receivables, 30 to 59 Days Past Due [Member] | Wholesale commercial lending [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 0
Financing Receivables, 30 to 59 Days Past Due [Member] | Land loans [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 0
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial loans - Secured [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 0
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Loans - Municipal loans [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 0
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial loans - other [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 37 | 0
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Leases - Investment Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | $ 336 | $ 505

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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 before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 + Details
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