PROPERTY AND EQUIPMENT, NET (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Property and Equipment, Net [Abstract]
Property and equipment, at cost	$ 84,512	$ 78,591
Accumulated depreciation and amortization	(49,093)	(44,331)
Property and equipment, net	35,419	34,260
Depreciation and amortization from continuing operations	7,900	7,200	$ 6,500
Machinery and Equipment [Member]
Property and Equipment, Net [Abstract]
Property and equipment, at cost	47,337	41,874
Furniture and Fixtures [Member]
Property and Equipment, Net [Abstract]
Property and equipment, at cost	4,383	4,149
Computer Equipment [Member]
Property and Equipment, Net [Abstract]
Property and equipment, at cost	8,325	7,882
Building and Leasehold Improvements [Member]
Property and Equipment, Net [Abstract]
Property and equipment, at cost	15,229	14,871
Construction in Progress [Member]
Property and Equipment, Net [Abstract]
Property and equipment, at cost	$ 9,238	$ 9,815