Document and Entity Information - USD ($)	7 Months Ended
	Dec. 31, 2018	Mar. 15, 2019	Jun. 30, 2018
Entity Registrant Name	ChaSerg Technology Acquisition Corp
Entity Central Index Key	0001743725
Trading Symbol	CTAC
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Type	10-K
Document Period End Date	Dec. 31, 2018
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2018
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Ex Transition Period	false
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Shell Company	true
Entity Public Float			$ 214,020,000
Class A Common Stock
Entity Common Stock, Shares Outstanding		22,640,000
Class B Common Stock
Entity Common Stock, Shares Outstanding		5,500,000