INVESTMENT IN AFFILIATES: (Details) - Empire Education Group Inc - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Investment in affiliates
Ownership percentage	54.60%		54.60%
Investment value	$ 0		$ 0
(Unaudited)
Gross revenues	32,398,000	$ 32,660,000	97,997,000	$ 93,715,000
Gross profit	8,856,000	10,287,000	28,254,000	27,429,000
Operating (loss) income	(1,003,000)	554,000	(142,000)	336,000
Net (loss) income	$ (1,072,000)	$ 425,000	$ (382,000)	$ (48,000)