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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.

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Amount of assets held-for-sale that are not part of a disposal group.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Supplemental Financial Statement Information - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Impairment of held-for-sale assets		$ 376	$ 0
Assets held for sale		1,073	0
Depreciation		1,100	1,200
Amortization		$ 1,300	1,400
Acquired finite-lived intangible assets, weighted average useful life		12 years 3 months 18 days
Goodwill impairment charge	$ 9,000	$ 8,996	$ 0
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Impairment of held-for-sale assets		300
Assets held for sale		$ 900
Supplier Concentration Risk \| Vendor One
Property, Plant and Equipment [Line Items]
Purchases from vendors		49.50%	63.40%
Supplier Concentration Risk \| Vendor Two
Property, Plant and Equipment [Line Items]
Purchases from vendors		41.60%	52.90%
Trademarks and tradenames
Property, Plant and Equipment [Line Items]
Acquired finite-lived intangible assets, weighted average useful life		5 years
Other intangibles
Property, Plant and Equipment [Line Items]
Acquired finite-lived intangible assets, weighted average useful life		15 years