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Note 15 - Industry Segment Information - Assets by Industry Segments (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Jun. 30, 2017
Assets $ 916,276 $ 867,676
Food Service Equipment Group [Member]    
Assets 249,716 243,414
Engraving Group [Member]    
Assets 148,844 115,664
Engineering Technologies Group [Member]    
Assets 141,314 150,805
Electronics Products Group [Member]    
Assets 320,271 292,776
Hydraulics Products Group [Member]    
Assets 25,062 21,405
Corporate and Other [Member]    
Assets $ 31,069 $ 43,612