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Benefit Plans 6 (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Jun. 30, 2017
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Defined Benefit Plan Asset Information |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 100.00% |
Fair value of plan assets | $ 7,702 | $ 6,530
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Asset Information |  |
Fair value of plan assets | 6,226 | 3,880
Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan Asset Information |  |
Fair value of plan assets | 1,337 | 2,538
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Asset Information |  |
Fair value of plan assets | $ 139 | $ 112
Minimum [Member] | Equity Securities [Member] |  |
Defined Benefit Plan Asset Information |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 40.00% |
Minimum [Member] | Debt Securities [Member] |  |
Defined Benefit Plan Asset Information |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 20.00% |
Minimum [Member] | Cash and Cash Equivalents [Member] |  |
Defined Benefit Plan Asset Information |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 0.00% |
Maximum [Member] | Equity Securities [Member] |  |
Defined Benefit Plan Asset Information |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 70.00% |
Maximum [Member] | Debt Securities [Member] |  |
Defined Benefit Plan Asset Information |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 50.00% |
Maximum [Member] | Cash and Cash Equivalents [Member] |  |
Defined Benefit Plan Asset Information |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 20.00% |

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- Definition Fair value of assets that have been segregated and restricted to provide pension or postretirement benefits. Assets include, but are not limited to, stocks, bonds, other investments, earnings from investments, and contributions by the employer and employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5)(i) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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