Note 17 - Industry Segment Information - Assets by Industry Segments (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jun. 30, 2018
Assets	$ 1,003,341	$ 916,937
Discontinued Operations [Member]
Assets	106,863	99,830
Engraving Group [Member] | Continuing Operations [Member]
Assets	202,989	149,973
Electronics Products Group [Member] | Continuing Operations [Member]
Assets	336,494	318,564
Engineering Technologies Group [Member] | Continuing Operations [Member]
Assets	147,754	150,150
Hydraulics Products Group [Member] | Continuing Operations [Member]
Assets	32,655	25,646
Food Service Equipment Group [Member] | Continuing Operations [Member]
Assets	152,062	149,743
Corporate and Other [Member] | Continuing Operations [Member]
Assets	$ 24,524	$ 23,031