Loans (Narrative) (Details) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2020 USD ($) item	Dec. 31, 2019 USD ($) item
Deposit Liabilities Reclassified as Loans Receivable	$ 2	$ 6
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, Subsequent Default, Number of Contracts \| item	0	0
Residential Real Estate and Consumer [Member]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		$ 0
Residential Real Estate and Consumer [Member] \| One-to-Four Family Owner-occupied [Member]
Post- Modification Investment		$ 285
Number of Modifications \| item		3
Post- Modification Investment		$ 285
Residential Real Estate and Consumer [Member] \| Commercial and Industrial [Member]
Post- Modification Investment		$ 729
Number of Modifications \| item		2
Post- Modification Investment		$ 729

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.

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Amount, after troubled debt restructuring, of modified financing receivable.

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Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

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Amount of financing receivable 90 days or more past due and still accruing.

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

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