Allowance for Loan Losses (Analysis of Past Due Loans and Non-Accruing Loans) (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2020		Dec. 31, 2019
Financing Receivable, Past Due [Line Items]
Total Past Due		$ 4,697		$ 5,897
Current Due		484,938		465,638
Total Loans Receivable		489,635	[1]	471,535	[2]
Loans on Non-Accrual		3,645		3,437
Real Estate Loans: One-to-Four Family [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	[3]	2,459		3,841
Current Due	[3]	148,981		150,908
Total Loans Receivable	[3]	151,440		154,749
Loans on Non-Accrual	[3]	2,919		2,845
Real Estate Loans: Home Equity [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		792		913
Current Due		45,417		44,337
Total Loans Receivable		46,209	[1]	45,250	[2]
Loans on Non-Accrual		712		590
Real Estate Loans: Commercial [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		70		1,133
Current Due		208,754		210,087
Total Loans Receivable		208,824	[1]	211,220	[2]
Real Estate Loans: Construction - Commercial [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		1,350
Current Due		35,572		32,299
Total Loans Receivable		36,922	[1]	32,299	[2]
Other Loans: Commercial [Member]
Financing Receivable, Past Due [Line Items]
Current Due		45,065	[4]	26,720
Total Loans Receivable		45,065	[1],[4],[5]	26,720	[2]
PPP loans outstanding		$ 23,100
PPP loans guaranteed by SBA, percent		100.00%
Other Loans: Consumer [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		$ 26		10
Current Due		1,149		1,287
Total Loans Receivable		1,175	[1]	1,297	[2]
Loans on Non-Accrual		14		2
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		859		1,421
Financial Asset, 30 to 59 Days Past Due [Member] | Real Estate Loans: One-to-Four Family [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	[3]	727		1,245
Financial Asset, 30 to 59 Days Past Due [Member] | Real Estate Loans: Home Equity [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		125		168
Financial Asset, 30 to 59 Days Past Due [Member] | Other Loans: Consumer [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		7		8
Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		519		1,967
Financial Asset, 60 to 89 Days Past Due [Member] | Real Estate Loans: One-to-Four Family [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	[3]	444		672
Financial Asset, 60 to 89 Days Past Due [Member] | Real Estate Loans: Home Equity [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due				162
Financial Asset, 60 to 89 Days Past Due [Member] | Real Estate Loans: Commercial [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		70		1,133
Financial Asset, 60 to 89 Days Past Due [Member] | Other Loans: Consumer [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		5
Financing Receivables, 90 Days or More Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		3,319		2,509
Financing Receivables, 90 Days or More Past Due [Member] | Real Estate Loans: One-to-Four Family [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	[3]	1,288		1,924
Financing Receivables, 90 Days or More Past Due [Member] | Real Estate Loans: Home Equity [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		667		583
Financing Receivables, 90 Days or More Past Due [Member] | Real Estate Loans: Construction - Commercial [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		1,350
Financing Receivables, 90 Days or More Past Due [Member] | Other Loans: Consumer [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		$ 14		$ 2

[1] Gross Loans Receivable does not include allowance for loan losses of $(5,064) or deferred loan costs of $3,357.

[2] Gross Loans Receivable does not include allowance for loan losses of $(4,267) or deferred loan costs of $3,548.

[3] Includes one- to four-family construction loans.

[4] Includes $23.1 million of PPP loans which do not require payments for a certain amount of time and are 100% guaranteed by SBA

[5] Includes $23.1 million of PPP loans which are 100% guaranteed by SBA and are graded as Pass/Performing loans.