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Note 15 - Restructuring (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016
Restructuring Charges, Total | $ 7,594 | $ 5,825 | $ 4,232
Engineering Technologies Group [Member] |  |  |
Restructuring Charges, Total | 1,098 | 3,879 | 160
Food Service Equipment Group [Member] |  |  |
Restructuring Charges, Total | 4,165 | 1,186 | 2,979
Electronics Products Group [Member] |  |  |
Restructuring Charges, Total | $ 299 | 499 | $ 841
Manufacturing Footprint Optimization at the Enginetics, Huber Heights, Ohio Facility [Member] | Engineering Technologies Group [Member] |  |  |
Restructuring Charges, Total |  | 3,600 |
Expenses to Gain Organization Efficiencies [Member] | Food Service Equipment Group [Member] |  |  |
Restructuring Charges, Total |  | 1,200 |
Expenses to Move Facility in China Due to Government Directives [Member] | Electronics Products Group [Member] |  |  |
Restructuring Charges, Total |  | $ 500 |

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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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