PROPERTY AND EQUIPMENT, NET (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Property and Equipment, Net [Abstract]
Property and equipment, at cost	$ 78,591	$ 66,344
Accumulated depreciation and amortization	(44,331)	(39,502)
Property and equipment, net	34,260	26,842
Depreciation and amortization from continuing operations	7,200	6,500	$ 6,300
Depreciation and amortization from discontinued operations	0	0	900
Impairment charge related to sale of assets			$ 1,600
Machinery and Equipment [Member]
Property and Equipment, Net [Abstract]
Property and equipment, at cost	41,874	37,352
Furniture and Fixtures [Member]
Property and Equipment, Net [Abstract]
Property and equipment, at cost	4,149	3,878
Computer Equipment [Member]
Property and Equipment, Net [Abstract]
Property and equipment, at cost	7,882	6,593
Land, Buildings and Improvements [Member]
Property and Equipment, Net [Abstract]
Property and equipment, at cost	14,871	11,663
Construction in Progress [Member]
Property and Equipment, Net [Abstract]
Property and equipment, at cost	$ 9,815	$ 6,858