Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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STOCK CAPITAL (Options issued to non-employee consultants) (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expenses	$ 6,600	$ 30,618	$ 17,564	$ 9,044
Employee Stock Option [Member] \| Nonemployee Consultants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding at the end of the period		58,931
Exercisable at the end of the period		4,923
Stock compensation expenses	$ 66	$ 1,299	$ 986	$ 524
Employee Stock Option [Member] \| Nonemployee Consultants [Member] \| 2014 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding at the end of the period		6,478
Exercisable at the end of the period		4,923
Employee Stock Option [Member] \| Nonemployee Consultants [Member] \| 2014 [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price		$ 3.51
Employee Stock Option [Member] \| Nonemployee Consultants [Member] \| 2014 [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price		$ 5.01
Employee Stock Option [Member] \| Nonemployee Consultants [Member] \| 2015 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding at the end of the period		5,918
Exercise price		$ 0
Exercisable at the end of the period
Employee Stock Option [Member] \| Nonemployee Consultants [Member] \| 2016 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding at the end of the period		7,126
Exercisable at the end of the period
Employee Stock Option [Member] \| Nonemployee Consultants [Member] \| 2016 [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price		$ 0
Employee Stock Option [Member] \| Nonemployee Consultants [Member] \| 2016 [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price		$ 15.34
Employee Stock Option [Member] \| Nonemployee Consultants [Member] \| 2017 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding at the end of the period		18,626
Exercisable at the end of the period
Employee Stock Option [Member] \| Nonemployee Consultants [Member] \| 2017 [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price		$ 0
Employee Stock Option [Member] \| Nonemployee Consultants [Member] \| 2017 [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price		$ 13.70
Employee Stock Option [Member] \| Nonemployee Consultants [Member] \| 2018 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding at the end of the period		20,783
Exercise price		$ 0
Exercisable at the end of the period