PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 14,362	$ 14,183
Less: accumulated depreciation	8,495	7,611
Net property, plant and equipment	5,867	6,572
Depreciation expense	1,100	1,000	$ 900
Depreciation included in cost of revenues	800	800	$ 700
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 245	245
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	$ 8,683	8,241
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	169
Computers and software
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 2,179	2,064
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	$ 2,792	2,729
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	$ 275	$ 716