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Loans Receivable (Details Textual) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017
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Impaired Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Impaired Financing Receivable, Unpaid Principal Balance, Total | $ 2,400 | $ 2,600
Impaired Financing Receivable, Recorded Investment, Total | 693 | 690
Two Residential Real Estate [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Troubled Debt Restructuring, Debtor, Subsequent Periods, Contingent Payments, Amount | 114 |
Home Equity Loan [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Impaired Financing Receivable, Unpaid Principal Balance, Total | 124 | 0
Impaired Financing Receivable, Recorded Investment, Total | 124 | 0
Troubled Debt Restructuring, Debtor, Subsequent Periods, Contingent Payments, Amount | 124 |
Commercial Business Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Troubled Debt Restructuring, Debtor, Subsequent Periods, Contingent Payments, Amount | 355 |
Commercial Real Estate [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Impaired Financing Receivable, Unpaid Principal Balance, Total | 1,289 | 512
Impaired Financing Receivable, Recorded Investment, Total | 1,289 | $ 512
Troubled Debt Restructuring, Debtor, Subsequent Periods, Contingent Payments, Amount | $ 935 |

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- Definition 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 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524 + Details
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- Definition Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without 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 (a)(4) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
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- Definition Amount of restructured debt contingently payable based on the occurrence of future events or circumstances. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 60 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6402221&loc=d3e15765-112638 + Details
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