FOREIGN CURRENCY DERIVATIVES (Details 5) $ in Thousands, $ in Thousands	Jun. 30, 2019 MXN ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 MXN ($)
Foreign currency swap contract [Member]
Derivative [Line Items]
Notional amount of contracts	$ 93,170	$ 4,691	$ 149,700