Note H - Income Taxes (Details Textual) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 25, 2016	Jun. 30, 2016
Effective Income Tax Rate Reconciliation, Percent	34.80%	51.50%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount			$ (2,400)
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent			12.70%
Income Tax Reconciliation Reduction In Effective Tax Rate	3.40%
Effective Income Tax Rate Reconciliation, Goodwill Impairment, Percent	2.50%
Effective Income Tax Rate Reconciliation, Mix of Earnings by Jurisdiction, Amount	$ 100
Effective Income Tax Rate Reconciliation, Mix of Earnings by Jurisdiction, Percent	1.30%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 987
Foreign Tax Authority [Member] | Earliest Tax Year [Member]
Open Tax Year	2011
Foreign Tax Authority [Member] | Latest Tax Year [Member]
Open Tax Year	2016
State and Local Jurisdiction [Member] | Earliest Tax Year [Member] | Wisconsin Department of Revenue [Member]
Open Tax Year	2010
State and Local Jurisdiction [Member] | Latest Tax Year [Member] | Wisconsin Department of Revenue [Member]
Open Tax Year	2015