Note L - Long-term Debt (Details Textual) $ in Thousands						3 Months Ended	9 Months Ended
	Apr. 22, 2019 USD ($)	Mar. 04, 2019 USD ($)	Mar. 03, 2019 USD ($)	Sep. 25, 2018 USD ($)	Jul. 02, 2018 USD ($)	Mar. 29, 2019 USD ($)	Mar. 29, 2019 USD ($)		Mar. 29, 2019 USD ($)	Mar. 30, 2018 USD ($)	Jun. 29, 2018 USD ($)
Proceeds from Issuance of Long-term Debt, Total									$ 44,151
Proceeds from Sale Leaseback Agreement						$ 370
Principal Paid on Sale Leaseback Liabilities						$ 12
Minimum [Member]
Sale Leaseback Transactions, Term						3 years
Sale Leaseback Transactions, Implied Interest Rate						7.00%	7.00%		7.00%
Maximum [Member]
Sale Leaseback Transactions, Term						5 years
Sale Leaseback Transactions, Implied Interest Rate						25.00%	25.00%		25.00%
Prior Parent of Veth Propulsion [Member]
Repayments of Debt					$ 1,865
Bank of Montreal [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Subsequent Event [Member]
Derivative, Notional Amount	$ 20,000
Derivative, Maturity Date	Mar. 04, 2026
Veth Propulsion [Member]
Payments to Acquire Businesses, Gross					58,862		$ 58,862	[1]
The 2018 Credit Agreement [Member]
Proceeds from Issuance of Long-term Debt, Total					60,729
Repayments of Debt				$ 32,210
The 2018 Credit Agreement [Member] | Revolving Credit Facility [Member]
Proceeds from Issuance of Long-term Debt, Total					25,729
Debt Instrument, Interest Rate During Period						2.98%			3.18%
The 2018 Credit Agreement [Member] | Term Loan [Member]
Proceeds from Issuance of Long-term Debt, Total					$ 35,000
Debt Instrument, Interest Rate During Period						4.72%			5.04%
BMO [Member] | The 2018 Credit Agreement [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity											$ 50,000
Line of Credit Facility, Current Borrowing Capacity						$ 50,000	50,000		$ 50,000
Line of Credit Facility, Remaining Borrowing Capacity						$ 21,107	$ 21,107		$ 21,107
BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member]
Debt Agreement, Maximum Borrowing Capacity		$ 20,000									$ 35,000
Long-term Debt, Gross			$ 10,849
Proceeds from Issuance of Debt		9,151
Debt Instrument, Periodic Payment, Total		$ 500
Debt Instrument, Covenant, Funded Debt to EBITDA Ratio		3
Debt Instrument, Covenant, Minimum Tangible Net Worth Plus Half of Net Income		$ 100,000	$ 70,000
Debt Instrument, Collateral, Percentage of Equity Interests in Certain Domestic Subsidiaries Pledged		100.00%
Debt Instrument, Collateral, Percentage of Equity Interests in Certain Foreign Subsidiaries Pledged		65.00%
Debt Instrument, Maturity Date		Mar. 04, 2026	Jan. 02, 2020
Debt Instrument, Frequency of Periodic Payment		quarter
BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member] | Minimum [Member]
Debt Instrument, Covenant, Funded Debt to EBITDA Ratio			3.5
BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member] | Maximum [Member]
Debt Instrument, Covenant, Funded Debt to EBITDA Ratio			3.25
BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate			3.00%
BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate		1.375%
BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate		2.375%

[1] In the statement of cash flows, the cash used in the acquisition of Veth Propulsion in the amount of $60,195 includes the cash used to pay off the loan to the prior parent of Veth Propulsion, and is net of the cash, including restricted cash, acquired in the transaction, of $1,078 (see below for fair value of assets acquired and liabilities assumed).