REVENUES - Company's disaggregation of revenues (Details) - USD ($) $ in Thousands		3 Months Ended
	Mar. 16, 2020	Mar. 31, 2020	Mar. 31, 2019
Revenues		$ 21,646	$ 10,439
Non refundable payments not yet recognized to revenues	$ 1,000
Pfizer [Member]
Revenues		2,016	1,356
Brazil [Member]
Revenues		3,015	2,174
Chiesi US Agreement [Member]
Revenue recognized due to change in estimate of total costs expected to be incurred		6,700
Goods [Member]
Revenues		5,031	3,530
License and R&D Services [Member]
Revenues		$ 16,615	$ 6,909