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ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Narrative) (Details) - USD ($)		3 Months Ended			6 Months Ended		12 Months Ended
	Mar. 12, 2018	Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Jan. 29, 2019	Jan. 15, 2019
Reduction in Certain Accrued Expense and Accounts Payable		$ 1,100,000	$ 100,000		$ 1,300,000	$ 100,000
Common stock warrant liabilities		2,336,000			2,336,000		$ 1,132,000
Gain in warrant revaluation				$ 200,000
Gain (loss) on settlement of equity instrments		$ 1,084,000	$ 6,000		1,251,000	147,000
Proceeds from convertible notes					$ 2,150,000	1,660,000
Liability related to equity purchase agreement							460,000
Other current liabilities
Liability related to equity purchase agreement							500,000
Crede Note
Warrants, fair value	$ 400,000
Gain (loss) on settlement of equity instrments						$ (400,000)
Issuance of convertible notes									$ 1,450,000
Settled Litigation | Crede Note
Litigation Settlement, Amount Awarded to Other Party	$ 1,925,000
Liability For Settlement Payment Period					16 months
Damages paid							$ 500,000
Settled Litigation | Leviston Resources LLC
Issuance of convertible notes								$ 700,000
Settled Litigation | Leviston Resources LLC | Crede Note | Accrued expenses
Issuance of convertible notes								$ 200,000

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