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CASH, CASH EQUIVALENTS AND RESTRICTED CASH (Details) - USD ($) $ in Thousands			9 Months Ended
	Mar. 29, 2019	Dec. 20, 2018	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2017
Cash and cash equivalents			$ 4,262	$ 15,756
Restricted cash			8,764	14,685
Restricted cash included in other long-term assets			48	48
Total cash, cash equivalents, and restricted cash			13,074	$ 30,489	$ 40,888	$ 37,153
Net proceeds	$ 20,300		22,900
Common Stock
Net proceeds			20,300
Warrants
Net proceeds			$ 2,600
Flow Through Common Shares
Net proceeds		$ 14,100

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of cash restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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