STOCK CAPITAL - Additional information (Details) - USD ($)
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1 Months Ended |
3 Months Ended |
6 Months Ended |
12 Months Ended |
132 Months Ended |
Jun. 11, 2019 |
May 23, 2019 |
Feb. 22, 2019 |
Jun. 06, 2018 |
Mar. 06, 2018 |
Jul. 13, 2017 |
Mar. 06, 2017 |
Mar. 26, 2019 |
Aug. 28, 2018 |
Nov. 20, 2017 |
Jul. 26, 2017 |
Mar. 06, 2017 |
Jun. 06, 2014 |
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
Dec. 31, 2018 |
Dec. 31, 2015 |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Proceeds from issuance of Common stock, net |
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$ 59,000,000
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| Fixed Commission Percentage |
3.00%
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| Proceeds from Warrant Exercises |
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$ 12,040,000
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$ 0
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$ 11,994,000
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0
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$ 11,994,000
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| Stock or Unit Option Plan Expense |
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$ 53,000
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$ 136,000
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365,000
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363,000
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| Class of Warrant or Right, Number of Securities Called by Warrants or Rights |
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2,458,201
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| Share-based Compensation |
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$ 390,000
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$ 363,000
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| 2015 Warrant |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Proceeds from Warrant Exercises |
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$ 12,291,000
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| Class of Warrant or Right, Exercise Price of Warrants or Rights |
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$ 5
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| Class of Warrant or Right, Number of Securities Called by Warrants or Rights |
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2,458,201
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| New Warrant [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Class of Warrant or Right, Exercise Price of Warrants or Rights |
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$ 9
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| Legal Advisor [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants In Period, Gross |
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5,908
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| Restricted Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Stock Issued During Period, Shares, Issued for Services |
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3,501
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| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |
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45,294
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| Share-based Compensation |
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$ 84,000
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| Director [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants In Period, Gross |
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402,778
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| Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price |
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$ 1.34
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| Chief Operating Officer [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Investment Warrants, Exercise Price |
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$ 0.75
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| Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants In Period, Gross |
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47,847
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| Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price |
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$ 4.18
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| Class of Warrant or Right, Outstanding |
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13,333
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| Chief Operating Officer [Member] | Restricted Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |
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35,885
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| Chief Executive Officer [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants In Period, Gross |
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369,619
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| Shares Issued, Price Per Share |
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$ 2.45
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| Chief Executive Officer [Member] | Restricted Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |
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31,185
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| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage |
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25.00%
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25.00%
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| Chief Financial Officer [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants In Period, Gross |
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93,686
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| Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price |
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$ 4.30
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| Chief Financial Officer [Member] | Restricted Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |
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25,000
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| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage |
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25.00%
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| Chief Commercial Officer [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants In Period, Gross |
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200,000
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| Shares Issued, Price Per Share |
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$ 3.98
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| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage |
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25.00%
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| Global Share Option Plan 2014 and U S Stock Option and Incentive Plan 2014 [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |
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4,000,000
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4,000,000
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| Common Stock, Capital Shares Reserved for Future Issuance |
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2,283,308
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2,283,308
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| Global Plan Under 2014, Former Director |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants In Period, Gross |
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4,167
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| Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price |
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$ 0.75
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| Mr. Yablonka [Member] | Executive Vice President, Chief Business Officer and Director [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants In Period, Gross |
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5,543
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| At The Market Offering [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Proceeds from issuance of Common stock, net |
$ 20,000
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| Private Placement [Member] | Restricted Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price |
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$ 4.81
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| Private Placement [Member] | Chief Executive Officer [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants In Period, Gross |
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41,580
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