Loans Receivable and Related Allowance for Loan Losses (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	$ 2,309		$ 2,360
Recorded Investment	2,900		3,000
Related Allowance	601		596
Loans Receivable With Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	6,279	4,162	6,408
Recorded Investment	5,338	3,221	5,467
Related Allowance	785	465	790
Average Recorded Investment	5,403	2,912	4,333
Interest Income Recognized in Period	2	13	94
Cash Basis Interest Recognized in Period	2	3	12
Loans Receivable With No Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	1,370	2,839	1,419
Recorded Investment	971	2,438	1,020
Average Recorded Investment	995	2,409	2,241
Interest Income Recognized in Period	7	2	551
Cash Basis Interest Recognized in Period	7	2	538
Residential First Mortgages [Member] \| Loans Receivable With Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	170	81	171
Recorded Investment	170	81	171
Related Allowance	27	21	27
Average Recorded Investment	170	82	136
Interest Income Recognized in Period	2	1	12
Cash Basis Interest Recognized in Period	2	1	12
Residential First Mortgages [Member] \| Loans Receivable With No Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	111	0	114
Recorded Investment	111	0	114
Average Recorded Investment	112	10	74
Interest Income Recognized in Period	0	0	2
Cash Basis Interest Recognized in Period	0	0	0
Home equity and lines of credit [Member] \| Loans Receivable With Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	0	0	0
Recorded Investment	0	0	0
Related Allowance	0	0	0
Average Recorded Investment	0	0	0
Interest Income Recognized in Period	0	0	0
Cash Basis Interest Recognized in Period	0	0	0
Home equity and lines of credit [Member] \| Loans Receivable With No Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	0	0	0
Recorded Investment	0	0	0
Average Recorded Investment	0	0	0
Interest Income Recognized in Period	0	0	0
Cash Basis Interest Recognized in Period	0	0	0
Commercial real estate [Member] \| Loans Receivable With Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	3,550	3,664	3,615
Recorded Investment	2,609	2,723	2,674
Related Allowance	252	209	268
Average Recorded Investment	2,642	2,621	2,673
Interest Income Recognized in Period	0	7	16
Cash Basis Interest Recognized in Period	0	2	0
Commercial real estate [Member] \| Loans Receivable With No Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	1,208	1,103	1,254
Recorded Investment	809	704	855
Average Recorded Investment	832	690	839
Interest Income Recognized in Period	5	2	15
Cash Basis Interest Recognized in Period	5	2	4
Commercial business [Member] \| Loans Receivable With Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	2,559	417	2,622
Recorded Investment	2,559	417	2,622
Related Allowance	506	235	495
Average Recorded Investment	2,591	209	1,524
Interest Income Recognized in Period	0	5	66
Cash Basis Interest Recognized in Period	0	0	0
Commercial business [Member] \| Loans Receivable With No Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	51	388	51
Recorded Investment	51	386	51
Average Recorded Investment	51	361	250
Interest Income Recognized in Period	2	0	1
Cash Basis Interest Recognized in Period	2	0	1
Consumer [Member] \| Loans Receivable With Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	0	0	0
Recorded Investment	0	0	0
Related Allowance	0	0	0
Average Recorded Investment	0	0	0
Interest Income Recognized in Period	0	0	0
Cash Basis Interest Recognized in Period	0	0	0
Consumer [Member] \| Loans Receivable With No Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	0	1,348	0
Recorded Investment	0	1,348	0
Average Recorded Investment	0	1,348	1,078
Interest Income Recognized in Period	0	0	533
Cash Basis Interest Recognized in Period	$ 0	$ 0	$ 533

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 17

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5258-111524

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 14A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953550-111524

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