Loans (Narrative) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($) item	Dec. 31, 2018 USD ($) item	Dec. 31, 2017 USD ($)
Deposit Liabilities Reclassified as Loans Receivable	$ 6	$ 7
Loans and Leases Receivable, Commitments to Purchase or Sell	0	0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable Modifications Specific Reserves	$ 158	$ 158
Financing Receivable, Modifications, Subsequent Default, Number of Contracts \| item	0	0
Loans and Leases Receivable, Allowance, Ending Balance	$ 2,264	$ 2,118	$ 1,800
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	11,083	25,794
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses	77	190
Credit Impaired [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance, Total	0	0
Non-Credit Impaired [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance, Total	11,160	25,984
Residential Real Estate and Consumer [Member]
Loans and Leases Receivable, Allowance, Ending Balance	1,013	1,178	$ 1,140
Residential Real Estate and Consumer [Member] \| One-to-Four Family Investor-owned [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	6,535	9,164
Residential Real Estate and Consumer [Member] \| One-to-Four Family Investor-owned [Member] \| Non-Credit Impaired [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance, Total	$ 6,580	$ 9,269

Represents the value of specific reserves of loans.

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Reserve for loans impairments recorded after acquisition as a result of current information and events which result in it being probable that estimated cash flows will be less than previously expected or because actual cash flows are less than cash flows previously expected. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that was 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.

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The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for 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.

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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.

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Amount of deposits held by the entity that have been reclassified as loan balances receivable, for example, but not limited to, overdrafts receivable.

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Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

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Recorded investment in financing receivables that are 90 days or more past due and still accruing.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Reflects the carrying amount of loans and leases for which agreements to acquire or dispose exist.

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