INVESTMENT IN MARKETABLE SECURITIES (Details Textual) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Jun. 30, 2018
Debt and Equity Securities, FV-NI [Line Items]
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 5,819,000		$ 5,819,000		$ 5,584,000
Unrealized Loss on Securities	$ 13,000	$ 697,000	$ 226,000	$ 907,000
Comstock Mining, Inc [Member]
Debt and Equity Securities, FV-NI [Line Items]
Percentage of Investment Marketable Securities			22.00%		18.00%
Unrealized Loss on Securities			$ 5,767,000		$ 5,542,000