Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2017	Apr. 26, 2019	Jun. 30, 2018
Document And Entity Information
Entity Registrant Name	ATRM Holdings, Inc.
Entity Central Index Key	0000908598
Document Type	10-K
Document Period End Date	Dec. 31, 2017
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filer	No
Entity Current Reporting Status	No
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 2,947,038
Entity Common Stock, Shares Outstanding		2,576,219
Trading Symbol	ATRM
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2017