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Note 3 - Borrowings and Credit Agreements (Details Textual) $ in Thousands, € in Millions, ¥ in Millions, SFr in Millions |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Oct. 01, 2018 USD ($) | Dec. 31, 2022 USD ($) | Dec. 25, 2021 USD ($) | Dec. 26, 2020 USD ($) | Dec. 31, 2022 EUR (€) | Dec. 31, 2022 JPY (¥) | Dec. 31, 2022 CHF (SFr) | Jun. 30, 2020 EUR (€)
Long-Term Debt, Total |  | $ 79,739 |  |  |  |  |  |
Long-Term Debt, Current Maturities, Total |  | 6,311 | $ 14,397 |  |  |  |  |
Repayments of Long-Term Debt, Total |  | 38,226 | 206,069 | $ 41,056 |  |  |  |
Gain (Loss) on Extinguishment of Debt, Total |  | (312) | (3,411) | $ 268 |  |  |  |
Long-Term Line of Credit, Total |  | 1,907 | 3,059 |  |  |  |  |
Ismeca [Member] |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | SFr |  |  |  |  |  |  | SFr 2 |
Long-Term Line of Credit, Total |  | $ 0 | 0 |  |  |  |  |
Number of Available Lines of Credit |  | 1 |  |  | 1 | 1 | 1 |
Revolving Credit Facility [Member] |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | ¥ |  |  |  |  |  | ¥ 960 |  |
Long-Term Line of Credit, Total |  | $ 1,900 |  |  |  | ¥ 250 |  |
Secured Term Loan Facility [Member] |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ 350,000 |  |  |  |  |  |  |
Debt Instrument, Amortization, Percentage of Principal Amount | 0.25% |  |  |  |  |  |  |
Long-Term Debt, Total |  | 66,200 | 101,600 |  |  |  |  |
Long-Term Debt, Current Maturities, Total |  | 3,200 | 10,100 |  |  |  |  |
Long-Term Debt, Fair Value |  | 66,600 |  |  |  |  |  |
Extinguishment of Debt, Amount |  | 31,800 | 200,000 |  |  |  |  |
Repayments of Long-Term Debt, Total |  | 31,700 | 200,000 |  |  |  |  |
Gain (Loss) on Extinguishment of Debt, Total |  | (300) | (3,400) |  |  |  |  |
Extinguishment of Debt Decrease Deferred Financing Costs |  | 400 | 3,400 |  |  |  |  |
Long-Term Debt, Gross |  | 66,952 | 103,130 |  |  |  |  |
Secured Term Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 3.00% |  |  |  |  |  |  |
Kita Term Loans [Member] |  |  |  |  |  |  |  |
Long-Term Debt, Total |  | 2,500 | 3,100 |  |  |  |  |
Long-Term Debt, Current Maturities, Total |  | 200 | 200 |  |  |  |  |
Long-Term Debt, Gross |  | $ 2,466 | 3,070 |  |  |  |  |
Kita Term Loans [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 0.05% |  |  | 0.05% | 0.05% | 0.05% |
Kita Term Loans [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 0.43% |  |  | 0.43% | 0.43% | 0.43% |
Loan Facilities [Member] | Construction Loans [Member] |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | € |  |  |  |  |  |  |  | € 10.1
Long-Term Debt, Total |  | $ 8,400 | 10,000 |  |  |  |  |
Long-Term Debt, Current Maturities, Total |  | $ 1,000 | $ 1,000 |  |  |  |  |
First Facility [Member] | Construction Loans [Member] |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | € |  |  |  |  | € 3.4 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 0.80% |  |  | 0.80% | 0.80% | 0.80% |
Debt Instrument, Term (Year) |  | 10 years |  |  |  |  |  |
Debt Instrument, Collateral Amount | € |  |  |  |  | € 3.4 |  |  |
Second Facility [Member] | Construction Loans [Member] |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | € |  |  |  |  | € 5.2 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 1.05% |  |  | 1.05% | 1.05% | 1.05% |
Debt Instrument, Term (Year) |  | 15 years |  |  |  |  |  |
Debt Instrument, Collateral Amount | € |  |  |  |  | € 5.2 |  |  |
Third Facility [Member] | Construction Loans [Member] |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 1.20% |  |  | 1.20% | 1.20% | 1.20% |
Debt Instrument, Term (Year) |  | 10 years |  |  |  |  |  |
Debt Instrument, Collateral Amount | € |  |  |  |  | € 0.9 |  |  |

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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 https://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 https://asc.fasb.org/extlink&oid=126734703&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 https://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 https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: 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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + 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 https://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 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 3: 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 https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 + 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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation. + 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)(3) -URI https://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69C -URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612 Reference 3: 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(a)(16)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 Reference 5: 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 https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 Reference 7: 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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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