Allowance for Loan Losses (Analysis of Past Due Loans and Non-Accruing Loans) (Details) - USD ($) $ in Thousands		Dec. 31, 2018		Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		$ 3,687		$ 5,010
Current Due		388,875		360,198
Total Loans Receivable		392,562	[1]	365,208	[2]
Loans on Non-Accrual		3,044		3,833
Real Estate Loans: One-to-Four Family [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	[3]	2,554		2,867
Current Due	[3]	152,470		141,747
Total Loans Receivable	[3]	155,024		144,614
Loans on Non-Accrual	[3]	2,310		2,196
Real Estate Loans: Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		731		298
Current Due		41,099		37,780
Total Loans Receivable		41,830	[1]	38,078	[2]
Loans on Non-Accrual		337		235
Real Estate Loans: Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		382		1,676
Current Due		150,093		121,071
Total Loans Receivable		150,475	[1]	122,747	[2]
Loans on Non-Accrual		382		1,323
Real Estate Loans: Construction - Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Due		22,252		30,802
Total Loans Receivable		22,252	[1]	30,802	[2]
Other Loans: Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		15		123
Current Due		21,810		27,489
Total Loans Receivable		21,825	[1]	27,612	[2]
Loans on Non-Accrual		15		54
Other Loans: Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		5		46
Current Due		1,151		1,309
Total Loans Receivable		1,156	[1]	1,355	[2]
Loans on Non-Accrual				25
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		1,143		1,213
Financing Receivables, 30 to 59 Days Past Due [Member] | Real Estate Loans: One-to-Four Family [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	[3]	851		692
Financing Receivables, 30 to 59 Days Past Due [Member] | Real Estate Loans: Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		211		27
Financing Receivables, 30 to 59 Days Past Due [Member] | Real Estate Loans: Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		76		411
Financing Receivables, 30 to 59 Days Past Due [Member] | Other Loans: Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due				61
Financing Receivables, 30 to 59 Days Past Due [Member] | Other Loans: Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		5		22
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		529		1,011
Financing Receivables, 60 to 89 Days Past Due [Member] | Real Estate Loans: One-to-Four Family [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	[3]	342		942
Financing Receivables, 60 to 89 Days Past Due [Member] | Real Estate Loans: Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		187		59
Financing Receivables, 60 to 89 Days Past Due [Member] | Other Loans: Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due				8
Financing Receivables, 60 to 89 Days Past Due [Member] | Other Loans: Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due				2
Financing Receivables, 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		2,015		2,786
Financing Receivables, 90 Days or More Past Due [Member] | Real Estate Loans: One-to-Four Family [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	[3]	1,361		1,233
Financing Receivables, 90 Days or More Past Due [Member] | Real Estate Loans: Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		333		212
Financing Receivables, 90 Days or More Past Due [Member] | Real Estate Loans: Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		306		1,265
Financing Receivables, 90 Days or More Past Due [Member] | Other Loans: Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		$ 15		54
Financing Receivables, 90 Days or More Past Due [Member] | Other Loans: Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due				$ 22

[1] Gross Loans Receivable does not include allowance for loan losses of $(3,448) or deferred loan costs of $3,357.

[2] Gross Loans Receivable does not include allowance for loan losses of $(3,283) or deferred loan costs of $3,138.

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