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LOAN AGREEMENT WITH KREOS AND RELATED WARRANT TO PURCHASE ORDINARY SHARES (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 04, 2016 | Dec. 30, 2015 | Nov. 20, 2018 | Jun. 30, 2017 | Dec. 31, 2020 | Dec. 31, 2019 | Jun. 06, 2019 | Jun. 09, 2017 | Dec. 28, 2016
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from long term loan | [1] |  |  |  |  | $ 392 |  |  |  |
Warrant to purchase ordinary shares |  |  |  |  |  | 11,389,555 | 2,522,284 |  |  |
Second Amendment [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Warrant exercise price |  |  |  | $ 7.5 |  |  |  |  |  |
Repayments |  |  |  | $ 3,600 |  |  |  |  |  |
Units issued |  |  |  | 192,000 |  |  |  |  |  |
Second Amendment [Member] | Pre-Funded [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Units issued |  |  |  | 288,000 |  |  |  |  |  |
Secured Debt [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Face amount |  |  | $ 20,000 |  |  |  |  |  |  |
Proceeds from long term loan |  | $ 20,000 |  |  |  |  |  |  |  |
Loan term |  |  | 24 months |  | 36 months |  |  |  |  |
Annual interest rate |  |  | 10.75% |  |  |  |  |  |  |
Required proceeds from issuance of common stock required for repayment period to be extended |  |  |  |  | $ 20,000 |  |  |  |  |
Interest expense |  |  |  |  |  | $ 907 |  |  |  |
Warrant to purchase ordinary shares |  | 4,771 |  |  |  |  |  | 480,000 |  | 6,679
Warrant exercise price |  | $ 241.0 |  |  |  |  |  | $ 7.50 |  |
Secured Debt [Member] | First Amendment [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Portion of principal subject to repayment extension |  |  |  |  |  |  |  |  | $ 3,000 |
[1] | See note 10.

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