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Loans and Allowance for Loan Losses (Schedule of Allowance for Loan Losses) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Activity in the allowance for loan losses by portfolio segment    
Beginning balance $ 2,837 $ 2,769
Provision(credit) charged 365 1,175
Losses charged off (165) (1,158)
Recoveries 3 51
Ending balance 3,040 2,837
Ending balances: Allowance for loan losses    
Individually evaluated for impairment 658 552
Collectively evaluated for impairment 2,382 2,285
Ending balances: Loans    
Individually evaluated for impairment 3,141 3,883
Collectively evaluated for impairment 337,648 300,905
Total Loans Receivable 340,789 304,788
One-to-four family residential [Member]    
Activity in the allowance for loan losses by portfolio segment    
Beginning balance 1,346 1,533
Provision(credit) charged 213 924
Losses charged off (81) (1,158)
Recoveries 1 47
Ending balance 1,479 1,346
Ending balances: Allowance for loan losses    
Individually evaluated for impairment 323 506
Collectively evaluated for impairment 1,156 840
Ending balances: Loans    
Individually evaluated for impairment 1,527 2,789
Collectively evaluated for impairment 191,897 176,943
Total Loans Receivable 193,424 [1] 179,732
All other mortgage loans [Member]    
Activity in the allowance for loan losses by portfolio segment    
Beginning balance 1,210 885
Provision(credit) charged (19) 325
Losses charged off (83)
Recoveries
Ending balance 1,108 1,210
Ending balances: Allowance for loan losses    
Individually evaluated for impairment 151 13
Collectively evaluated for impairment 957 1,197
Ending balances: Loans    
Individually evaluated for impairment 1,067 1,061
Collectively evaluated for impairment 120,890 104,060
Total Loans Receivable [1] 121,957 105,121
Commercial business loans [Member]    
Activity in the allowance for loan losses by portfolio segment    
Beginning balance 279 343
Provision(credit) charged 166 (65)
Losses charged off
Recoveries 2 1
Ending balance 447 279
Ending balances: Allowance for loan losses    
Individually evaluated for impairment 184 33
Collectively evaluated for impairment 263 246
Ending balances: Loans    
Individually evaluated for impairment 547 33
Collectively evaluated for impairment 22,668 17,998
Total Loans Receivable [1] 23,215 18,031
Consumer loans [Member]    
Activity in the allowance for loan losses by portfolio segment    
Beginning balance 2 8
Provision(credit) charged 5 (9)
Losses charged off (1)
Recoveries 3
Ending balance 6 2
Ending balances: Allowance for loan losses    
Individually evaluated for impairment
Collectively evaluated for impairment 6 2
Ending balances: Loans    
Individually evaluated for impairment
Collectively evaluated for impairment 2,193 1,904
Total Loans Receivable [1] $ 2,193 $ 1,904
[1] Ratings are generally assigned to consumer and residential mortgage loans on a "pass" or "fail" basis, where "fail" results in a substandard classification. Commercial loans, both secured by real estate or other assets or unsecured, are analyzed in accordance with an analytical matrix codified in the Bank's loan policy that produces a risk rating as described below.