Cover - shares	6 Months Ended
	Jun. 30, 2022	Aug. 15, 2022
Cover [Abstract]
Entity Registrant Name	GUIDED THERAPEUTICS, INC.
Entity Central Index Key	0000924515
Document Type	10-Q
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Document Period End Date	Jun. 30, 2022
Entity Filer Category	Non-accelerated Filer
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2022
Entity Common Stock Shares Outstanding		36,664,707
Document Quarterly Report	true
Entity File Number	0-22179
Entity Incorporation State Country Code	DE
Entity Tax Identification Number	58-2029543
Entity Interactive Data Current	Yes
Entity Address Address Line 1	5835 Peachtree Corners East
Entity Address Address Line 2	Suite B
Entity Address City Or Town	Norcross
Entity Address State Or Province	GA
Entity Address Postal Zip Code	30092
City Area Code	770
Local Phone Number	242-8723
Document Transition Report	false