Allowance for Loan Losses (Summary of Internal Loan Grades Applied to Loan Portfolio) (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2020		Dec. 31, 2019
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		$ 489,635	[1]	$ 471,535	[2]
Pass/ Performing [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		466,574		460,449
Special Mention [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		18,521		6,998
Substandard [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		4,540		4,088
Real Estate Loans: One-to-Four Family [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross	[3]	151,440		154,749
Real Estate Loans: One-to-Four Family [Member] | Pass/ Performing [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross	[4]	148,573		152,115
Real Estate Loans: One-to-Four Family [Member] | Substandard [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross	[4]	2,867		2,634
Real Estate Loans: Home Equity [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		46,209	[1]	45,250	[2]
Real Estate Loans: Home Equity [Member] | Pass/ Performing [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		45,155		44,403
Real Estate Loans: Home Equity [Member] | Substandard [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		1,054		847
Real Estate Loans: Commercial [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		208,824	[1]	211,220	[2]
Real Estate Loans: Commercial [Member] | Pass/ Performing [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		194,989		208,042
Real Estate Loans: Commercial [Member] | Special Mention [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		13,230		2,573
Real Estate Loans: Commercial [Member] | Substandard [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		605		605
Real Estate Loans: Construction - Commercial [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		36,922	[1]	32,299	[2]
Real Estate Loans: Construction - Commercial [Member] | Pass/ Performing [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		36,922		32,299
Other Loans: Commercial [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		45,065	[1],[5],[6]	26,720	[2]
PPP loans outstanding		$ 23,100
PPP loans guaranteed by SBA, percent		100.00%
Other Loans: Commercial [Member] | Pass/ Performing [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		$ 39,774	[5]	22,295
PPP loans outstanding		$ 23,100
PPP loans guaranteed by SBA, percent		100.00%
Other Loans: Commercial [Member] | Special Mention [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		$ 5,291	[5]	4,425
Other Loans: Consumer [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		1,175	[1]	1,297	[2]
Other Loans: Consumer [Member] | Pass/ Performing [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		1,161		1,295
Other Loans: Consumer [Member] | Substandard [Member]
Allowance for Loan Losses [Line Items]
Loans and Leases Receivable, Gross		$ 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 one- to four-family construction loans.

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

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