Disclosure - GENERAL - Additional Information (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020 USD ($) segment	Dec. 31, 2019 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Description of Business and Significant Accounting Policies [Line Items]
Number of reportable segments | segment	1
Stockholders’ deficit | $	$ (33,245)	$ (35,813)	$ (25,149)	$ (18,189)	$ (13,057)	$ (17,364)
6% Convertible Notes Due 2023
Description of Business and Significant Accounting Policies [Line Items]
Debt stated interest rate percentage	6.00%	6.00%
Debt, maturity year	2023	2023