Loans (Credit Quality Indicators) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Total loans for credit quality indicators	$ 158,132	$ 157,147
Pass [Member]
Total loans for credit quality indicators	154,130	155,373
Special Mention [Member]
Total loans for credit quality indicators	3,364	1,353
Substandard [Member]
Total loans for credit quality indicators	638	421
Commercial Portfolio Segment [Member] | Development [Member]
Total loans for credit quality indicators	18,222	7,801
Commercial Portfolio Segment [Member] | Development [Member] | Pass [Member]
Total loans for credit quality indicators	18,222	7,801
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Total loans for credit quality indicators	68,621	69,425
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Pass [Member]
Total loans for credit quality indicators	68,036	69,425
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Special Mention [Member]
Total loans for credit quality indicators	585
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Total loans for credit quality indicators	13,681	13,142
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Pass [Member]
Total loans for credit quality indicators	10,888	13,122
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Special Mention [Member]
Total loans for credit quality indicators	2,779
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Substandard [Member]
Total loans for credit quality indicators	14	20
Residential Real Estate and Consumer [Member]
Total loans for credit quality indicators	33,610	43,751
Residential Real Estate and Consumer [Member] | Performing Financial Instruments [Member]
Total loans for credit quality indicators	32,777	42,544
Residential Real Estate and Consumer [Member] | Nonperforming Financial Instruments [Member]
Total loans for credit quality indicators	833	1,207
Residential Real Estate and Consumer [Member] | One-to-Four Family Owner-occupied [Member]
Total loans for credit quality indicators	29,380	41,018
Residential Real Estate and Consumer [Member] | One-to-Four Family Owner-occupied [Member] | Performing Financial Instruments [Member]
Total loans for credit quality indicators	28,636	39,919
Residential Real Estate and Consumer [Member] | One-to-Four Family Owner-occupied [Member] | Nonperforming Financial Instruments [Member]
Total loans for credit quality indicators	744	1,099
Residential Real Estate and Consumer [Member] | Consumer [Member]
Total loans for credit quality indicators	4,230	2,733
Residential Real Estate and Consumer [Member] | Consumer [Member] | Performing Financial Instruments [Member]
Total loans for credit quality indicators	4,141	2,625
Residential Real Estate and Consumer [Member] | Consumer [Member] | Nonperforming Financial Instruments [Member]
Total loans for credit quality indicators	89	108
Residential Real Estate and Consumer [Member] | One-to-Four Family Investor-owned [Member]
Total loans for credit quality indicators	28,077	32,312
Residential Real Estate and Consumer [Member] | One-to-Four Family Investor-owned [Member] | Pass [Member]
Total loans for credit quality indicators	27,453	30,558
Residential Real Estate and Consumer [Member] | One-to-Four Family Investor-owned [Member] | Special Mention [Member]
Total loans for credit quality indicators		1,353
Residential Real Estate and Consumer [Member] | One-to-Four Family Investor-owned [Member] | Substandard [Member]
Total loans for credit quality indicators	624	401
Residential Real Estate and Consumer [Member] | Multifamily Loan [Member]
Total loans for credit quality indicators	29,531	34,467
Residential Real Estate and Consumer [Member] | Multifamily Loan [Member] | Pass [Member]
Total loans for credit quality indicators	$ 29,531	$ 34,467