DEBT- Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2020	Dec. 31, 2019
Long-term debt
Balance, initial recognition	$ 49,600	$ 49,500
Long-term portion	16,799	19,758
Term Loan \| Gold Bar Complex
Long-term debt
Balance, beginning of year	49,516	49,206
Interest expense	1,297	5,185
Interest payments	(1,215)	(4,875)
Balance, end of year	49,598	49,516
Less current portion	16,000	10,000
Long-term portion	$ 33,598	$ 39,516

Amount of the required periodic payments applied to interest.

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Aggregate amount of interest paid or due on all long-term debt.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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