WARRANTS TO PURCHASE ORDINARY SHARES (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2017	Dec. 31, 2016
Assumptions used in determination of fair value
Liability related to warrants	$ 19,793	$ 7,078
Financial expense (income) recorded as a result of change in the warrants' fair value	12,715
Warrant to purchase Ordinary Shares \| Private Placement
Assumptions used in determination of fair value
Liability related to warrants	19,793
Financial expense (income) recorded as a result of change in the warrants' fair value	$ 12,715
Warrant to purchase Ordinary Shares \| Monte Carlo Option Pricing Model \| Private Placement
Assumptions used in determination of fair value
Risk-free interest rate (as a percent)	1.79%	1.84%
Expected volatility (as a percent)	59.10%	65.50%
Expected life (in years)	4 years 4 months 2 days	4 years 7 months 2 days
Expected dividend yield (as a percent)	0.00%	0.00%
Fair value per warrant (in dollars)	$ 3.02	$ 1.08

Amount of expense (income) related to adjustment to fair value of warrant liability to purchase common stock.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Agreed upon price for the exchange of the underlying asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price).

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Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

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Risk-free interest rate assumption used in valuing an instrument.

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Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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