Loans (Credit Quality Indicators) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Total loans for credit quality indicators	$ 161,402	$ 158,132
Pass [Member]
Total loans for credit quality indicators	157,271	154,130
Special Mention [Member]
Total loans for credit quality indicators	3,432	3,364
Substandard [Member]
Total loans for credit quality indicators	699	638
Commercial Portfolio Segment [Member] | Development [Member]
Total loans for credit quality indicators	15,765	18,222
Commercial Portfolio Segment [Member] | Development [Member] | Pass [Member]
Total loans for credit quality indicators	15,765	18,222
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Total loans for credit quality indicators	75,046	68,621
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Pass [Member]
Total loans for credit quality indicators	74,467	68,036
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Special Mention [Member]
Total loans for credit quality indicators	579	585
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Total loans for credit quality indicators	12,850	13,681
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Pass [Member]
Total loans for credit quality indicators	9,985	10,888
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Special Mention [Member]
Total loans for credit quality indicators	2,853	2,779
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Substandard [Member]
Total loans for credit quality indicators	12	14
Residential Real Estate and Consumer [Member]
Total loans for credit quality indicators	34,000	33,610
Residential Real Estate and Consumer [Member] | Performing Financial Instruments [Member]
Total loans for credit quality indicators	33,916	32,777
Residential Real Estate and Consumer [Member] | Nonperforming Financial Instruments [Member]
Total loans for credit quality indicators	84	833
Residential Real Estate and Consumer [Member] | One-to-Four Family Owner-occupied [Member]
Total loans for credit quality indicators	29,852	29,380
Residential Real Estate and Consumer [Member] | One-to-Four Family Owner-occupied [Member] | Performing Financial Instruments [Member]
Total loans for credit quality indicators	29,852	28,636
Residential Real Estate and Consumer [Member] | One-to-Four Family Owner-occupied [Member] | Nonperforming Financial Instruments [Member]
Total loans for credit quality indicators		744
Residential Real Estate and Consumer [Member] | Consumer [Member]
Total loans for credit quality indicators	4,148	4,230
Residential Real Estate and Consumer [Member] | Consumer [Member] | Performing Financial Instruments [Member]
Total loans for credit quality indicators	4,064	4,141
Residential Real Estate and Consumer [Member] | Consumer [Member] | Nonperforming Financial Instruments [Member]
Total loans for credit quality indicators	84	89
Residential Real Estate and Consumer [Member] | One-to-Four Family Investor-owned [Member]
Total loans for credit quality indicators	30,021	28,077
Residential Real Estate and Consumer [Member] | One-to-Four Family Investor-owned [Member] | Pass [Member]
Total loans for credit quality indicators	29,334	27,453
Residential Real Estate and Consumer [Member] | One-to-Four Family Investor-owned [Member] | Substandard [Member]
Total loans for credit quality indicators	687	624
Residential Real Estate and Consumer [Member] | Multifamily Loan [Member]
Total loans for credit quality indicators	27,720	29,531
Residential Real Estate and Consumer [Member] | Multifamily Loan [Member] | Pass [Member]
Total loans for credit quality indicators	$ 27,720	$ 29,531