Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	May 09, 2019
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Trading Symbol	igxt
Entity Registrant Name	IntelGenx Technologies Corp.
Entity Central Index Key	0001098880
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		93,527,474
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Ex Transition Period	false