Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Feb. 27, 2019	Jun. 30, 2018
Document and Entity Information
Entity Registrant Name	Golden Minerals Co
Entity Central Index Key	0001011509
Document Type	10-K
Document Period End Date	Dec. 31, 2018
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Public Float			$ 17.9
Entity Common Stock, Shares Outstanding		96,399,391
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY