Loans Receivable and Allowance for Loan Losses (Schedule of credit risk profile by internally assigned grade) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	$ 109,418	$ 105,748
Pass
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	108,304	104,678
Substandard
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	1,114	1,070
Real Estate | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	21,976	22,349
Real Estate | Land
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	2,390	2,200
Real Estate | One-to-Four Family
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	74,635	72,273
Real Estate | Construction
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	4,848	4,259
Real Estate | Multi-family
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	2,069	2,086
Real Estate | Pass | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	21,976	22,349
Real Estate | Pass | Land
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	2,378	2,200
Real Estate | Pass | One-to-Four Family
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	73,533	71,203
Real Estate | Pass | Construction
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	4,848	4,259
Real Estate | Pass | Multi-family
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	2,069	2,086
Real Estate | Substandard | Land
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	12
Real Estate | Substandard | One-to-Four Family
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	1,102	1,070
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	355	246
Consumer | Pass
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	355	246
Commercial
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	3,145	2,335
Commercial | Pass
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	$ 3,145	$ 2,335