INCOME TAXES (Details)	3 Months Ended	6 Months Ended
	Sep. 30, 2016 USD ($) foreign_subsidiary	Sep. 30, 2016 USD ($) foreign_subsidiary	Sep. 30, 2015	Mar. 31, 2016 USD ($)
Income Tax Contingency [Line Items]
Number of foreign subsidiaries required to be assessed | foreign_subsidiary	2	2
Cumulative undistributed net earnings permanently reinvested in Mexican foreign subsidiaries	$ 1,400,000	$ 1,400,000
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries	1,800,000	1,800,000
Total gross unrecognized tax benefits including interest	11,300,000	11,300,000		$ 10,700,000
Unrecognized tax benefits that are permanent in nature and, if recognized, would affect the annual effective tax rate	8,600,000	8,600,000		$ 8,200,000
Gross unrecognized tax benefits expected to be resolved during the next 12 months through settlements with taxing authorities or the expiration of the statute of limitations	5,800,000	5,800,000
Accrued gross interest	$ 1,572,363	1,572,363
Current period gross interest expense		260,235
Effective Income Tax Rate Reconciliation, Percent	36.60%		31.80%
WAC de Mexico, S.A. de C.V., SOFOM ENR [Member]
Income Tax Contingency [Line Items]
Cumulative undistributed net earnings permanently reinvested in Mexican foreign subsidiaries	$ 21,400,000	$ 21,400,000