Note 4 - Equipment and Leasehold Improvements (Tables)

6 Months Ended

Sep. 30, 2022

Notes Tables

Property, Plant and Equipment [Table Text Block]

	September 30, 2022			March 31, 2022
	(in thousands)
Equipment	$	20,493		$	20,231
Leasehold improvements		14,786			14,751
Furniture and fixtures		401			394
		35,680			35,376
Less accumulated depreciation and amortization		(25,164	)		(24,339	)
Construction-in-progress		1,231			848
Equipment and leasehold improvements, net	$	11,747		$	11,885