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Short-term and long-term debt - Additional Information (Details)			3 Months Ended		12 Months Ended
	Mar. 02, 2022 USD ($)	Apr. 23, 2020 USD ($)	Mar. 31, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Short-term and long-term debt
Forgiveness of Payroll Protection Program loan						$ (2,475,000)
Paycheck Protection Program \| CARES Act Loan
Short-term and long-term debt
Unsecured loan		$ 2,475,000
Forgiveness of Payroll Protection Program loan				$ 2,475,000
Term of unforgiven loan		2 years
Debt instrument interest at fixed rate		1.00%
Deferral term of unforgiven loan		9 months
FCCR
Short-term and long-term debt
Payment of debt, cash flow amount					$ 15,000,000
Revolving credit facility Amendment
Short-term and long-term debt
Debt instrument, basis spread on variable rate	1.00%
Additional interest percentage	0.50%
Revolving credit facility Amendment \| SOFR
Short-term and long-term debt
Additional interest percentage	1.00%
Revolving credit facility Amendment \| SOFR \| FILO Tranche
Short-term and long-term debt
Debt instrument, basis spread on variable rate	1.00%
Additional interest percentage	0.50%
Revolving credit facility Amendment \| SOFR \| SOFR FILO Tranche
Short-term and long-term debt
Additional interest percentage	7.50%
Revolving credit facility Amendment \| Prime commercial lending rate of Wells Fargo
Short-term and long-term debt
Additional interest percentage	1.75%
Revolving credit facility Amendment \| Prime commercial lending rate of Wells Fargo \| FILO Tranche
Short-term and long-term debt
Additional interest percentage	6.50%
Revolving Credit Facility
Short-term and long-term debt
Deferred financing costs	$ 200,000
Term Loan Facility
Short-term and long-term debt
Debt instrument loan amount	85,000,000
Payment of term loan deferred financing costs	$ 4,300,000
Principal payments on term loan, percentage			5.00%
Percentage of excess cash flow in which annual payments made	50.00%
Prepayment premium percentage year one	3.00%
Prepayment premium percentage year two	2.00%
Prepayment premium percentage year three	1.00%
Prepayment premium percentage year four and thereafter	0.00%
Term Loan Facility \| Base Rate
Short-term and long-term debt
Debt instrument, basis spread on variable rate	2.00%
Term Loan Facility \| Federal Funds
Short-term and long-term debt
Debt instrument, basis spread on variable rate	0.50%
Term Loan Facility \| SOFR
Short-term and long-term debt
Debt instrument, basis spread on variable rate	1.00%
Prior Term Loan Facility
Short-term and long-term debt
Deferred financing costs	$ 1,300,000
Payment of debt, cash flow amount	16,000,000.0
Principal balance of debt	63,900,000
Lender fees and expenses on debt	$ 3,300,000
Credit facility, interest expense			$ 4,600,000
Minimum \| FCCR
Short-term and long-term debt
Fixed charges coverage ratio					1.0
Fixed charge coverage ratio requirement					1.0
Debt instrument, leverage ratio					0.34
Leverage ratio, maximum					1.0
Minimum \| SOFR plus Applicable leverage ratio
Short-term and long-term debt
Additional interest percentage	7.00%
Minimum \| Applicable Leverage Ratio
Short-term and long-term debt
Additional interest percentage	6.00%
Minimum \| Revolving credit facility Amendment \| SOFR
Short-term and long-term debt
Additional interest percentage	2.36%
Minimum \| Revolving credit facility Amendment \| Prime commercial lending rate of Wells Fargo
Short-term and long-term debt
Additional interest percentage	1.25%
Maximum \| FCCR
Short-term and long-term debt
Fixed charges coverage ratio					4.45
Fixed charge coverage ratio requirement					1.10
Debt instrument, leverage ratio					1.0
Leverage ratio, maximum					4.00
Maximum \| SOFR plus Applicable leverage ratio
Short-term and long-term debt
Additional interest percentage	8.00%
Maximum \| Applicable Leverage Ratio
Short-term and long-term debt
Additional interest percentage	7.00%
Maximum \| Revolving credit facility Amendment \| SOFR
Short-term and long-term debt
Additional interest percentage	2.86%
Wells Fargo
Short-term and long-term debt
Maximum borrowing capacity	$ 90,000,000
Minimum liquidity requirement	5,000,000
Deferred financing costs	$ 900,000
Line of credit facility term	5 years
Wells Fargo \| FILO Tranche
Short-term and long-term debt
Amount borrowed	$ 15,000,000
Wells Fargo \| FCCR
Short-term and long-term debt
Minimum aggregate undrawn loan availability	$ 11,250,000
Period for FCCR covenant	12 months
Wells Fargo \| Revolving credit facility Amendment
Short-term and long-term debt
Amount borrowed	$ 75,000,000
Wells Fargo \| Amended and restated revolving credit and security agreement
Short-term and long-term debt
Maximum borrowing capacity	75,000,000
Wells Fargo \| Swing line loan
Short-term and long-term debt
Maximum borrowing capacity	9,000,000
Wells Fargo \| Letter of credit
Short-term and long-term debt
Maximum borrowing capacity	$ 2,000,000
Wells Fargo \| Revolving Credit Facility \| FCCR
Short-term and long-term debt
Period for FCCR covenant	2 months
Wells Fargo \| Minimum \| FCCR
Short-term and long-term debt
Fixed charges coverage ratio	1.00
Wells Fargo \| Minimum \| Revolving credit facility Amendment
Short-term and long-term debt
Additional interest percentage	0.35%
Wells Fargo \| Maximum
Short-term and long-term debt
Minimum amount to be derived from availability	$ 3,000,000
Wells Fargo \| Maximum \| FCCR
Short-term and long-term debt
Fixed charges coverage ratio	1.00
Wells Fargo \| Maximum \| Revolving credit facility Amendment
Short-term and long-term debt
Additional interest percentage	0.75%