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Note 17 - Industry Segment Information - Assets by Industry Segments (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Jun. 30, 2018
Assets $ 1,009,607 $ 916,937
Discontinued Operations [Member]    
Assets 98,048 99,830
Food Service Equipment Group [Member] | Continuing Operations [Member]    
Assets 154,507 149,743
Engraving Group [Member] | Continuing Operations [Member]    
Assets 218,346 149,973
Engineering Technologies Group [Member] | Continuing Operations [Member]    
Assets 143,413 150,150
Electronics Products Group [Member] | Continuing Operations [Member]    
Assets 337,364 318,564
Hydraulics Products Group [Member] | Continuing Operations [Member]    
Assets 27,937 25,646
Corporate and Other [Member] | Continuing Operations [Member]    
Assets $ 29,992 $ 23,031