4. TRADE ACCOUNTS RECEIVABLE AND ALLOWANCE FOR DOUBTFUL ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Notes to Financial Statements
Beginning	$ 247	$ 270
Additions charged to expenses	8	65
Recovered	(1)	(78)
Write-off	0	(2)
Currency translation effect	5	(8)
Ending	$ 259	$ 247