PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 14,183	$ 13,748
Less: accumulated depreciation	7,611	7,205
Net property, plant and equipment	6,572	6,543
Depreciation expense	1,000	900	$ 700
Depreciation included in cost of revenues	800	700	$ 500
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 245	260
Furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Useful Life	3 years
Furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Useful Life	5 years
Plant and equipment
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 8,241	7,975
Plant and equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful Life	3 years
Plant and equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful Life	17 years
Manufacturing
Property, Plant and Equipment [Line Items]
Useful Life	15 years
Gross property, plant and equipment	$ 169	220
Computers and software
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 2,064	2,246
Computers and software | Minimum
Property, Plant and Equipment [Line Items]
Useful Life	3 years
Computers and software | Maximum
Property, Plant and Equipment [Line Items]
Useful Life	5 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 2,729	2,681
Land
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	19	19
Construction-in-progress
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 716	$ 347