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Debt and Line of Credit (Details)			3 Months Ended	12 Months Ended
	Oct. 29, 2021 USD ($)	Oct. 30, 2018 USD ($) covenant	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	May 31, 2020 USD ($)
Debt Instrument [Line Items]
Total long-term debt				$ 0	$ 6,927,000
PPP loan forgiveness			$ 6,979,000	6,979,000	0
PPP Loan
Debt Instrument [Line Items]
Total long-term debt				0	$ 6,927,000	$ 6,927,000
Senior Credit Facility | Line of Credit | 2018 term notes
Debt Instrument [Line Items]
Term of debt instrument		3 years
Senior Credit Facility | Line of Credit | Revolving loan agreement
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 15,000	$ 20,000,000		15,000,000
Remaining balance available for borrowing				$ 10,900,000
Number of financial covenants | covenant		2
Consolidated fixed charge coverage ratio		1.25
Minimum trailing four quarter consolidated adjusted EBITDA	$ 3,000,000
Debt Covenant Period, One | Senior Credit Facility | Line of Credit | Revolving loan agreement
Debt Instrument [Line Items]
Consolidated leverage ratio		2.50
Debt Covenant Period, Two | Senior Credit Facility | Line of Credit | Revolving loan agreement
Debt Instrument [Line Items]
Consolidated leverage ratio		2.00

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