CONVERTIBLE NOTES (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Current portion of long-term debt	$ (321)	$ (263)
Long-term debt, net of current maturities	198	253
Convertible Debt [Member]
Debt Instrument [Line Items]
Current portion of long-term debt	(142)	(4,377)
Long-term debt, net of current maturities
Convertible bridge notes \| Convertible Debt [Member]
Debt Instrument [Line Items]
Convertible notes	1,938	4,294
Debt issuance cost	(1,796)	(1,111)
Convertible bridge notes premiums		647
Convertible promissory notes - Exchange Notes \| Convertible Debt [Member]
Debt Instrument [Line Items]
Convertible notes		630
Debt issuance cost		(83)
Long-term debt, net of current maturities	$ 0	$ 600

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt premium.

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Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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

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