Note 17 - Industry Segment Information - Net Sales and Income (Loss) by Industry Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Net sales	$ 196,438	$ 193,080
Income from operations	18,441	22,645
Restructuring costs	(1,479)	(447)
Acquisition-related costs	(734)	(688)
Other operating (income) expense, net	1,045	(0)
Interest expense	(2,121)	(2,244)
Other non-operating income	916	(201)
Income from continuing operations before income taxes	17,236	20,200
Engraving Group [Member]
Net sales	38,431	35,979
Income from operations	6,537	7,547
Restructuring costs	(1,038)	(17)
Electronics Products Group [Member]
Net sales	46,617	51,450
Income from operations	8,099	12,787
Restructuring costs		(12)
Engineering Technologies Group [Member]
Net sales	24,644	20,784
Income from operations	3,359	1,775
Restructuring costs		(47)
Hydraulics Products Group [Member]
Net sales	13,749	12,536
Income from operations	2,527	1,583
Food Service Equipment Group [Member]
Net sales	72,997	72,331
Income from operations	8,372	6,668
Restructuring costs	(91)	(21)
Corporate and Other [Member]
Income from operations	(9,285)	(6,580)
Restructuring costs	$ (350)	$ (350)