Document and Entity Information - shares	9 Months Ended
	Dec. 31, 2019	Feb. 10, 2019
Document and Entity Information [Abstract]
Entity Registrant Name	Ecoark Holdings, Inc.
Entity Central Index Key	0001437491
Amendment Flag	false
Current Fiscal Year End Date	--03-31
Document Type	10-Q
Document Period End Date	Dec. 31, 2019
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2020
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Interactive Data Current	Yes
Entity File Number	000-53361
Entity Incorporation State Country Code	NV
Entity Common Stock, Shares Outstanding		73,067,732