FAIR VALUE MEASUREMENTS (Details 1) - USD ($)	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Jun. 30, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loss	$ 0	$ 0
Other Investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other non-marketable investments	733,000		$ 813,000
Other Investments [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other non-marketable investments	$ 733,000		$ 813,000