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Loans Receivable - Nonaccrual Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Unpaid Principal Balance | $ 925 | $ 1,920
Recorded Investment | 800 | 1,517
Loans Past Due Over 90 Days, still accruing | 47 | 0
One-to-four family residential real estate loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Unpaid Principal Balance | 598 | 1,445
Recorded Investment | 512 | 1,168
Loans Past Due Over 90 Days, still accruing | 0 | 0
One-to-four family residential real estate loans - non-owner occupied loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Unpaid Principal Balance |  | 119
Recorded Investment |  | 79
Loans Past Due Over 90 Days, still accruing |  | 0
Nonresidential real estate loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Unpaid Principal Balance | 280 | 356
Recorded Investment | 288 | 270
Loans Past Due Over 90 Days, still accruing | 0 | $ 0
Nonrated Commercial Leases [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Unpaid Principal Balance | 47 |
Recorded Investment | 0 |
Loans Past Due Over 90 Days, still accruing | $ 47 |

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- Definition Financing Receivable, Nonaccrual + References No definition available. + Details
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- Definition Recorded investment in financing receivables that are 90 days or more past due and still accruing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524 + Details
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- Definition Financing receivables that are current. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953401-111524 + 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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