Note 3 - Revenue From Contracts With Customers (Details Textual) - USD ($) $ in Thousands		12 Months Ended
	Jul. 01, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Retained Earnings (Accumulated Deficit), Ending Balance	$ 760,397	$ 818,282	$ 761,430
Revenue from Contract with Customer, Including Assessed Tax		791,579	770,452	$ 647,885
Cost of Goods and Services Sold, Total		523,519	500,850	432,332
Accrued Liabilities, Current, Total	67,077	62,648	57,679
Engineering Technologies Group [Member]
Revenue from Contract with Customer, Including Assessed Tax		105,270	90,781	90,506
Food Service Equipment Group [Member]
Revenue from Contract with Customer, Including Assessed Tax		$ 278,600	$ 298,936	$ 273,597
Accounting Standards Update 2014-09 [Member]
Retained Earnings (Accumulated Deficit), Ending Balance	(1,000)
Revenue from Contract with Customer, Including Assessed Tax	(799)
Cost of Goods and Services Sold, Total	(574)
Accounting Standards Update 2014-09 [Member] | Engineering Technologies Group [Member]
Revenue from Contract with Customer, Including Assessed Tax	700
Cost of Goods and Services Sold, Total	600
Accounting Standards Update 2014-09 [Member] | Food Service Equipment Group [Member]
Accrued Liabilities, Current, Total	$ (1,500)