Document And Entity Information - USD ($)	12 Months Ended
	Mar. 31, 2018	Jun. 28, 2018	Sep. 30, 2017
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Entity Registrant Name	Jerash Holdings (US), Inc.
Entity Central Index Key	0001696558
Current Fiscal Year End Date	--03-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 0
Entity Common Stock, Shares Outstanding		11,325,000
Trading Symbol	JRSH