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CONVERTIBLE NOTES (Bridge Note debt discounts and debt premiums) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Debt premiums
Beginning balance	$ 900
Convertible Debt [Member] | Convertible Bridge Loan
Debt discounts
Beginning balance	1,111
Deductions: Amortization/accretion	(58)
Ending balance	1,053
Debt premiums
Beginning balance	647
Deductions: Amortization/accretion	(160)
Deductions: Write-off related to note conversions	(396)
Ending balance	$ 91

X

- Definition

Amount of noncash expense included in interest expense to amortize debt discount associated with the related debt instruments.

+ References

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- Definition

Amount of noncash expense included in interest expense to amortize debt premium associated with the related debt instruments.

+ References

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+ Details

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- Definition

Write-off of amounts previously capitalized as debt premium related to note conversions.

+ References

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X

- Definition

Amount, after accumulated amortization, of debt discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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- Definition

Amount, after accumulated amortization, of debt premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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