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Loans (Major Classifications of Loans) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Subtotal loans	$ 209,022		$ 217,958
Deferred loan fees	(282)		(424)
Allowance for loan losses	(2,426)	$ (2,424)	(2,811)	$ (2,604)	$ (2,542)	$ (2,264)
Net loans	206,314		214,723
Commercial Portfolio Segment [Member]
Subtotal loans	126,514		122,453
Allowance for loan losses	(1,559)	(1,590)	(1,834)	(1,929)	(1,552)	(1,251)
Commercial Portfolio Segment [Member] \| Development [Member]
Subtotal loans	18,745		14,090
Commercial Portfolio Segment [Member] \| Real Estate Loan [Member]
Subtotal loans	90,963		87,605
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member]
Subtotal loans	16,806		20,758
Residential Real Estate and Consumer [Member]
Subtotal loans	82,508		95,505
Allowance for loan losses	(867)	$ (834)	(977)	$ (675)	$ (990)	$ (1,013)
Residential Real Estate and Consumer [Member] \| One-to-Four Family Owner-occupied [Member]
Subtotal loans	22,000		30,548
Residential Real Estate and Consumer [Member] \| One-to-Four Family Investor-owned [Member]
Subtotal loans	26,474		32,638
Residential Real Estate and Consumer [Member] \| Multifamily Loan [Member]
Subtotal loans	31,540		29,303
Residential Real Estate and Consumer [Member] \| Consumer [Member]
Subtotal loans	$ 2,494		$ 3,016