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Goodwill, Other Intangible Assets, and Acquisition Related Accounting (Details Textual) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
Indefinite-lived Intangible Assets [Line Items] |  |  |
Goodwill | $ 2,792 |  | $ 2,792
First Federal Acquisition [Member] |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Goodwill | 2,000 |  |
Amortization of Intangible Assets | 6 | $ 6 |
First Federal Acquisition [Member] | Loans Receivable [Member] |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Accretion (Amortization) of Discounts and Premiums, Investments | 1,100 |  |
Accretion Expense | $ 70 | 73 |
First Federal Acquisition [Member] | Loans Receivable [Member] | Home Equity Line of Credit [Member] |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Accretion Amortization Of Discounts And Premiums Term | 55 months |  |
First Federal Acquisition [Member] | During 2018 [Member] |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Amortization of Intangible Assets | $ 6 |  |
First Federal Acquisition [Member] | During 2018 [Member] | Loans Receivable [Member] |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Accretion (Amortization) of Discounts and Premiums, Investments | 90 |  |
First Federal Acquisition [Member] | During 2019 To 2021 [Member] |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Amortization of Intangible Assets | 12 |  |
Core Deposits [Member] | First Federal Acquisition [Member] |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Finite-Lived Core Deposits, Gross | $ 93 |  |
Finite-Lived Intangible Asset, Useful Life | 7 years 10 months 24 days |  |
Liberty Savings [Member] |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Goodwill | $ 804 |  |
Amortization of Intangible Assets | 29 |  |
Liberty Savings [Member] | Loans Receivable [Member] |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Accretion (Amortization) of Discounts and Premiums, Investments | $ 1,200 |  |
Accretion Amortization Of Discounts And Premiums Term | 44 months |  |
Accretion Expense | $ 134 | 152 |
Liberty Savings [Member] | During 2018 [Member] |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Accretion Expense | 131 |  |
Liberty Savings [Member] | During 2019 [Member] | Loans Receivable [Member] |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Accretion Expense | 44 |  |
Liberty Savings [Member] | First Federal Acquisition [Member] |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Goodwill | 2,800 |  |
Liberty Savings [Member] | Core Deposits [Member] |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Finite-Lived Core Deposits, Gross | $ 471 |  |
Finite-Lived Intangible Asset, Useful Life | 8 years 2 months 12 days |  |
Amortization of Intangible Assets | $ 29 | $ 29 |
Liberty Savings [Member] | Core Deposits [Member] | During 2019 To 2021 [Member] |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Amortization of Intangible Assets | $ 58 |  |

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- Definition The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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- Definition Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392676&loc=d3e7480-110848 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 35 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6394232&loc=d3e17558-110866 + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Bank deposits belonging to an acquired bank that can be counted on as a stable source of lending funds. These deposits have the following attributes: predictable costs and low sensitivity to interest rates. This intangible asset is usually amortized over its estimated useful life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 + Details
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