INVENTORIES (Tables)

6 Months Ended

Sep. 30, 2020

Inventory Disclosure [Abstract]

Schedule of manufacturing inventories

Manufacturing inventories

	September 30, 2020		March 31, 2020
Finished goods:
Manufactured finished goods	$	20,223	$	15,790
Distributor inventory	286		504
Total finished goods	20,509		16,294
Work in progress	2,833		1,001
Raw materials	12,540		11,901
Total manufacturing inventories	$	35,882	$	29,196

Schedule of service part inventories

Service parts inventories

	September 30, 2020		March 31, 2020
Finished goods	$	17,924	$	15,845
Component parts	5,287		4,657
Total service parts inventories	$	23,211	$	20,502