Inventories - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Inventory [Line Items]
Allowance for inventory valuation	$ 1,200	$ 400
Inventories, net	13,770	11,951
Mexico
Inventory [Line Items]
Inventories, net	4,000	3,100
Canada
Inventory [Line Items]
Inventories, net	$ 1,100	$ 1,100

Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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