Merger - Schedule of Intangible Assets Acquired (Details) - ATRM Holdings, Inc. - USD ($) $ in Thousands	Sep. 10, 2019	Dec. 31, 2019
Business Acquisition [Line Items]
Intangibles	$ 19,470	$ 19,470
Trade Names
Business Acquisition [Line Items]
Intangibles	$ 5,540
Useful Life (years)	15 years
Customer Relationships - Modular Buildings
Business Acquisition [Line Items]
Intangibles	$ 7,830
Useful Life (years)	10 years
Customer Relationships - Wood Products
Business Acquisition [Line Items]
Intangibles	$ 5,670
Useful Life (years)	10 years
Backlog
Business Acquisition [Line Items]
Intangibles	$ 430
Useful Life (years)	1 year

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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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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