GOING CONCERN (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
GOING CONCERN
Cash and cash equivalents	$ 3,069	$ 7,576	$ 6,501
Working capital	1,100
Net loss	17,256	16,638
Accumulated deficit	$ 78,534	$ 61,278