Earnings Per Share (Details) - Schedule of computation of basic and diluted earnings per share - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Numerator:
Net income attributable to Jerash Holdings (US), Inc.’s Common Stockholders (in Dollars)	$ 1,934,683	$ 813,859
Denominator:
Denominator for basic earnings per share (weighted-average shares)	11,333,934	11,325,000
Dilutive securities – unexercised warrants and options	20,746	5,210
Denominator for diluted earnings per share (adjusted weighted-average shares)	11,354,680	11,330,210
Basic and diluted earnings per share (in Dollars per share)	$ 0.17	$ 0.07