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Note G - Debt (Details Textual) |  |  |  |  |  |  | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 22, 2020 USD ($) | Apr. 17, 2020 USD ($) | Jan. 28, 2020 USD ($) | Mar. 04, 2019 USD ($) | Sep. 25, 2018 USD ($) | Jul. 02, 2018 USD ($) | Jun. 30, 2021 USD ($) | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | Dec. 31, 2021 | Mar. 26, 2021 USD ($) | Jan. 27, 2021 USD ($) | Jan. 26, 2021 USD ($) | Dec. 25, 2020 USD ($) | Sep. 25, 2020 | Mar. 27, 2020 | Dec. 27, 2019 | Dec. 26, 2019 | Mar. 03, 2019 USD ($) | Jun. 29, 2018 USD ($)
Proceeds from Long-term Lines of Credit |  |  |  |  |  |  | $ 76,335,000 | $ 99,262,000 |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt, Total |  |  |  |  |  |  | 8,200,000 | 0 |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Sale Leaseback Agreement |  |  |  |  |  |  |  |  | $ 329,000 |  |  |  |  |  |  |  |  |  |  |
Principal Paid on Sale Leaseback Liabilities |  |  |  |  |  |  | 91,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale Leaseback Transactions, Term (Year) |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |
Sale Leaseback Transactions, Implied Interest Rate |  |  |  |  |  |  |  |  | 7.00% |  |  |  |  |  |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale Leaseback Transactions, Term (Year) |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |
Sale Leaseback Transactions, Implied Interest Rate |  |  |  |  |  |  |  |  | 25.00% |  |  |  |  |  |  |  |  |  |  |
Prior Parent of Veth Propulsion [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of Debt |  |  |  |  |  | $ 1,865,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank of Montreal [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  |  |  |  | 15,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Veth Propulsion [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross |  |  |  |  |  | 58,862,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  | $ 1,535,000 | $ 943,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt, Weighted Average Interest Rate |  |  |  |  |  |  | 5.60% | 5.60% |  |  |  |  |  |  |  |  |  |  |  |
The 2018 Credit Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of Debt |  |  |  |  | $ 32,210,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Paycheck Protection Program CARES Act [Member] | Promissory Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Long-term Debt, Total |  | $ 8,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt, Total |  |  |  |  |  |  | $ 8,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |
BMO [Member] | The 2018 Credit Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  | $ 42,500 | $ 45,000 |  |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  |  |  |  | 60,729,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Minimum Cumulative EBITDA |  |  |  |  |  |  | $ 10,000,000 | $ 1,000,000 |  |  | $ 6,000,000 |  |  | $ 2,500,000 |  |  |  |  |  |
Debt Instrument, Percentage of Equity Interest in Domestic Subsidiaries Pledged | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Percentage of Equity Interest in Foreign Subsidiaries Pledged | 65.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Debt Default, Percentage of Letter of Credit Obligations Required to Cash Collateralize | 105.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
BMO [Member] | The 2018 Credit Agreement [Member] | Forecast [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Allowable Ratio, Current Quarter |  |  |  |  |  |  |  |  |  | 3.00 |  |  |  |  |  |  |  |  |  |
BMO [Member] | The 2018 Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  | 1.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
BMO [Member] | The 2018 Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  | 3.375% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Agreement, Maximum Borrowing Capacity |  |  |  | $ 20,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  |  | 9,151,000 |  | 35,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, Gross |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,849,000 |
Debt Instrument, Periodic Payment, Total |  |  |  | $ 500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Funded Debt to EBITDA Ratio |  |  |  | 3.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Minimum Tangible Net Worth Plus Half of Net Income |  |  |  | $ 100,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 70,000,000 |
Debt Instrument, Principal Payment Deferred | $ 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate During Period |  |  |  |  |  |  | 4.01% |  |  |  |  |  |  |  |  |  |  |  |  |
BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Funded Debt to EBITDA Ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.50 |
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 | 3.875% |  | 3.375% | 2.375% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
BMO [Member] | The 2018 Credit Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Agreement, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 35,000,000
Line of Credit Facility, Maximum Borrowing Capacity | $ 45,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 50,000,000
Proceeds from Long-term Lines of Credit |  |  |  |  |  | $ 25,729,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate During Period |  |  |  |  |  |  | 4.25% |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity |  |  |  |  |  |  | $ 43,795,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  |  |  |  | $ 27,085,000 |  |  |  |  |  |  |  |  |  |  |  |  |
BMO [Member] | The 2018 Credit Agreement Amendment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Maximum Allowable Extraordinary Expenses |  |  | $ 3,900,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
BMO [Member] | The 2018 Credit Agreement Amendment [Member] | Revolving Credit Facility [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Allowable Ratio, Current Quarter |  |  |  |  |  |  |  | 4.00 |  |  |  |  |  | 3.00 | 3.50 | 5.00 | 4.00 | 3.00 |  |

X
- Definition Maximum borrowing capacity under a debt agreement on the amount that could be borrowed with a combination of, but not limited to, a line of credit and term loan. + References No definition available. + Details
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- Definition Represents the ceiling of funded debt over EBITDA under debt instrument covenants. + References No definition available. + Details
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- Definition The maximum amount of allowable extraordinary expenses under the debt instrument agreement. + References No definition available. + Details
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- Definition The minimum cumulative EBITDA required under the debt agreement. + References No definition available. + Details
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- Definition Represents the minimum tangible net worth, plus 50% of net income, under a debt instrument covenant. + References No definition available. + Details
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- Definition The percentage of letter of credit obligations required to be cash collateralize upon the occurrence of an event of default. + References No definition available. + Details
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- Definition The percentage of equity interest in domestic subsidiaries pledged to secure a debt instrument. + References No definition available. + Details
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- Definition The percentage of equity interest in foreign subsidiaries pledged to secure a debt instrument. + References No definition available. + Details
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- Definition Amount of principal payment deferred under the debt instrument. + References No definition available. + Details
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- Definition Represents the amount of principal paid during the period on sale leaseback liabilities. + References No definition available. + Details
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- Definition Represents the cash inflow during the period from sale leaseback agreements. + References No definition available. + Details
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- Definition Represents the implied interest rate on sale leaseback transactions. + References No definition available. + Details
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- Definition Represents the term of sale leaseback transactions. + References No definition available. + Details
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- Definition Represents total funded debt to EBITDA allowable ratio. + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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- Definition The average effective interest rate during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1F -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount of the required periodic payments including both interest and principal payments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823 + Details
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- Definition Weighted average interest rate of debt outstanding. + References No definition available. + Details
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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123467658&loc=d3e12355-112629 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123467658&loc=d3e12317-112629 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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