PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 18,317	$ 14,362
Less: accumulated depreciation	9,190	8,495
Net property, plant and equipment	9,127	5,867
Depreciation expense	1,000	1,100	$ 1,000
Depreciation included in cost of revenues	800	800	$ 800
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	$ 9,053	8,683
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	$ 2,132	2,179
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	$ 3,192	2,792
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	$ 3,507	$ 275