Long-Term Debt and Credit Arrangements (Term Loans) (Details) $ in Thousands	3 Months Ended
Mar. 27, 2021 USD ($) Rate
AmeriState Bank [Member]
Debt Disclosure [Line Items]
Secured Debt Other Term Loans \| $	$ 10,000
Long-term Debt, Term	25 years
Debt Instrument, Interest Rate, Stated Percentage \| Rate	5.00%
Debt Instrument, Interest Rate Terms	or 4.00% above 5-year treasury, to be reset every 5 years at 3.5% above 5-year treasury
Debt Instrument, Covenant Compliance	The loan requires certain compliance, affirmative, and financial covenants and, as of the reporting date, the Company is in compliance with all such covenants.
Greater Nevada Credit Union [Member]
Debt Disclosure [Line Items]
Secured Debt Other Term Loans \| $	$ 15,000
Long-term Debt, Term	10 years
Debt Instrument, Interest Rate, Stated Percentage \| Rate	5.00%
Debt Instrument, Interest Rate Terms	or 4.00% above 5- year treasury, to be reset after 5 years at 3.5% above 5-year treasury
Debt Instrument, Covenant Compliance	The loan requires certain compliance, affirmative, and financial covenants and, as of the reporting date, the Company is in compliance with all such covenants.

Debt Disclosure [Line Items]

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- Definition

us-gaap_SecuredDebtOtherTermLoans

+ References

No definition available.

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- Definition

States whether the entity was in compliance with the debt covenants throughout the reporting period, and describes facts and circumstances of any compliance failure.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823

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))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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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 http://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 http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ 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(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Period between issuance and maturity of long-term debt, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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