DISCONTINUED OPERATIONS: The related cash inflows and outflows and revenues and expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Discontinued Operations and Disposal Groups [Abstract]
Cash inflows	$ 49,543	$ 20,173
Cash outflows	10,280	3,609
Revenues	47,864	23,810
Costs	$ 6,486	$ 6,985