Note 10 - Property, Plant and Equipment (Tables)

6 Months Ended

Sep. 30, 2019

Notes Tables

Property, Plant and Equipment [Table Text Block]

	September 30, 2019			March 31, 2019
Construction in progress - equipment	$	2,223		$	603
Equipment and software		45,127			45,705
Furniture and fixtures		1,259			1,269
Leasehold improvements		1,976			1,955
Property, plant and equipment, gross		50,585			49,532
Less accumulated depreciation		(41,975	)		(40,560	)
Property, plant and equipment, net	$	8,610		$	8,972