INVESTMENT IN AFFILIATES: (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Investment in affiliates
Equity in loss of affiliated companies	$ 0	$ 13,925,000	$ 0	$ 14,783,000
Empire Education Group Inc
Investment in affiliates
Ownership percentage	54.60%		54.60%
Investment value	$ 0		$ 0
Equity in loss of affiliated companies	0	973,000	0	1,832,000
Non-cash impairment charge	0	(12,954,000)	0	(12,954,000)
Total losses related to EEG	0	(13,927,000)	0	(14,786,000)
Summarized Statement of Operations (Unaudited) [Abstract]
Gross revenues	31,019,000	33,724,000	61,055,000	69,664,000
Gross profit	9,168,000	7,365,000	17,278,000	15,406,000
Operating income (loss)	488,000	(1,819,000)	(219,000)	(3,290,000)
Net income (loss)	$ 357,000	$ (1,805,000)	$ (472,000)	$ (3,358,000)