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Note 17 - Industry Segment Information - Assets by Industry Segments (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Jun. 30, 2019
Assets $ 956,922 $ 921,889
Discontinued Operations [Member]    
Assets 42,397 59,639
Electronics Products Group [Member] | Continuing Operations [Member]    
Assets 328,855 332,326
Engraving Group [Member] | Continuing Operations [Member]    
Assets 260,520 233,569
Engineering Technologies Group [Member] | Continuing Operations [Member]    
Assets 151,801 149,628
Hydraulics Products Group [Member] | Continuing Operations [Member]    
Assets 27,665 28,132
Food Service Equipment Group [Member] | Continuing Operations [Member]    
Assets 105,032 100,017
Corporate and Other [Member] | Continuing Operations [Member]    
Assets $ 40,652 $ 18,578