Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2019	Nov. 12, 2019
Document And Entity Information
Entity Registrant Name	Tottenham Acquisition I Ltd
Entity Central Index Key	0001731176
Document Type	10-Q
Document Period End Date	Sep. 30, 2019
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Is Entity's Reporting Status Current?	No
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		5,965,000
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2019
Entity Emerging Growth Company	true
Entity Small Business	true
Entity Ex Transition Period	false
Entity Interactive data current	Yes
Entity File Number	001-38614
Entity Incorporation State	D8