Note 14 - Net Financial Expenses - Financial Income (Expenses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Other Income and Expenses [Abstract]
Foreign exchange gain (loss)	$ (299)	$ (676)
Write-off of deferred financing fees related to at-the-market (ATM) program		(264)
Interest income	77	107
Other Income	147
Change in fair value of warrant liabilities	5,197	(2,426)
Financial income (expenses)	$ 5,122	$ (3,259)