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Benefit Plans Benefit Plans (ESOP) (Narrative) (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Jun. 30, 2019 | Dec. 31, 2018 | Jun. 30, 2018 | Dec. 31, 2017
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
ESOP, requisite service period | 1 year |  |  |
ESOP, requisite service period (per year) | 1000 hours |  |  |
ESOP, shares purchased to partially fulfill annual discretionary allocation | 28,000 |  | 60,000 |
ESOP, vesting period | 6 years |  |  |
ESOP expense | $ 1,100,000 |  | $ 1,100,000 |
ESOP, number of allocated shares |  | 30,000 |  | 60,000
ESOP,cash contributions | $ 539,000 | $ 539,000 |  |
Minimum |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
ESOP participation age limit | 21 years |  |  |

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- Definition Employee Stock Ownership Plan (ESOP), Number of Shares Purchased for the Plan + References No definition available. + Details
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- Definition Employee Stock Ownership Plan (ESOP), Participation Age Limit + References No definition available. + Details
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- Definition Employee Stock Ownership Plan (ESOP), Requisite Service Period + References No definition available. + Details
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- Definition Employee Stock Ownership Plan (ESOP), Requisite Service Period, Annual + References No definition available. + Details
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- Definition Employee Stock Ownership Plan (ESOP), Vesting Period + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition This item represents the amount of cash contributions during the period made by the entity to the Employee Stock Ownership Plan (ESOP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929 + Details
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- Definition The amount of plan compensation cost recognized during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929 + Details
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- Definition The shares or units in an ESOP trust that have been assigned to individual participant accounts based on a known formula. IRS rules require allocations to be nondiscriminatory generally based on compensation, length of service, or a combination of both. For any particular participant such shares or units may be vested, unvested, or partially vested. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929 + Details
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- Details
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