Inventory

12 Months Ended

Mar. 31, 2023

Inventory consists of the following as of the dates presented (in thousands):


	As of March 31,
	2023		2022
Raw materials	$	5,167	$	2,412
Work in process	1,719		1,865
Sub-assembly	809		1,628
Finished goods	711		425
Total	$	8,406	$	6,330

The Company recorded inventory write-offs of $2.8 million and $0.2 million for the years ended March 31, 2023 and 2022, respectively. The inventory write-offs in the current year resulted primarily from a decision in the current period to discontinue the evaluation of certain epiwafer inventory produced while bringing the Company’s reactors online following an internal risk assessment of using these epiwafer units in the Company’s manufacturing process, and in favor of allocating the Company’s resources to current and future epiwafer production and expansion efforts.