Loans Receivable and Related Allowance for Loan Losses (Details 4) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	$ 3,069	$ 6,848
Residential first mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,209	647
Home equity and lines of credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	395	407
Commercial real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	746	3,417
Commercial business [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	719	2,377
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,402	5,315
Not Past Due [Member] | Residential first mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	75	283
Not Past Due [Member] | Home equity and lines of credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	14	33
Not Past Due [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	623	2,848
Not Past Due [Member] | Commercial business [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	690	2,151
Not Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	18
30-59 Days Past Due [Member] | Residential first mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
30-59 Days Past Due [Member] | Home equity and lines of credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	18
30-59 Days Past Due [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
30-59 Days Past Due [Member] | Commercial business [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
30-59 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	79	268
60-89 Days Past Due [Member] | Residential first mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	79	80
60-89 Days Past Due [Member] | Home equity and lines of credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
60-89 Days Past Due [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
60-89 Days Past Due [Member] | Commercial business [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	188
60-89 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
90 Days + Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,588	1,247
90 Days + Past Due [Member] | Residential first mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,055	284
90 Days + Past Due [Member] | Home equity and lines of credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	381	356
90 Days + Past Due [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	123	569
90 Days + Past Due [Member] | Commercial business [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	29	38
90 Days + Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	$ 0	$ 0