GOING CONCERN (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended
	May 18, 2020	May 31, 2020	Apr. 30, 2020	Apr. 30, 2019	Jan. 31, 2020
GOING CONCERN
Cash and cash equivalents			$ 279		$ 727
Working capital (deficit)			(2,100)
Net loss			(2,011)	$ (3,623)
Accumulated deficit			$ (90,232)		$ (88,221)
Securities Purchase Agreement
GOING CONCERN
Gross proceeds from sale of stock in private placement	$ 25,000	$ 25,000