Loans (Loans Aging Information) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current loans	$ 195,091	$ 191,396
Total loans	195,402	191,742
Nonaccrual loans	706	1,070
Financing Receivables, 30 to 89 Days Past Due [Member]
Loans past due	311
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans past due		346
Commercial Portfolio Segment [Member]
Total loans	103,661	100,524
Commercial Portfolio Segment [Member] | Development [Member]
Current loans	15,765	18,222
Total loans	15,765	18,222
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Current loans	75,046	68,621
Total loans	75,046	68,621
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Current loans	12,850	13,681
Total loans	12,850	13,681
Nonaccrual loans	12	14
Residential Real Estate and Consumer [Member]
Total loans	91,741	91,218
Residential Real Estate and Consumer [Member] | One-to-Four Family Owner-occupied [Member]
Current loans	29,683	29,034
Total loans	29,852	29,380
Nonaccrual loans		346
Residential Real Estate and Consumer [Member] | One-to-Four Family Owner-occupied [Member] | Financing Receivables, 30 to 89 Days Past Due [Member]
Loans past due	169
Residential Real Estate and Consumer [Member] | One-to-Four Family Owner-occupied [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans past due		346
Residential Real Estate and Consumer [Member] | One-to-Four Family Investor-owned [Member]
Current loans	29,934	28,077
Total loans	30,021	28,077
Nonaccrual loans	610	624
Residential Real Estate and Consumer [Member] | One-to-Four Family Investor-owned [Member] | Financing Receivables, 30 to 89 Days Past Due [Member]
Loans past due	87
Residential Real Estate and Consumer [Member] | Multifamily Loan [Member]
Current loans	27,720	29,531
Total loans	27,720	29,531
Residential Real Estate and Consumer [Member] | Consumer [Member]
Current loans	4,093	4,230
Total loans	4,148	4,230
Nonaccrual loans	84	$ 86
Residential Real Estate and Consumer [Member] | Consumer [Member] | Financing Receivables, 30 to 89 Days Past Due [Member]
Loans past due	$ 55