Note 9 - Inventory (Details Textual) - USD ($) $ in Thousands	3 Months Ended		7 Months Ended	9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Oct. 26, 2019	Dec. 31, 2020	Dec. 31, 2019
Inventory Write-down	$ 400	$ 300	$ 491	$ 1,610	$ 500