Inventory

9 Months Ended

Dec. 31, 2022

Inventory Disclosure [Abstract]

Inventory

Inventory

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

	December 31, 2022		March 31, 2022
Raw materials	$	4,789	$	2,412
Work in process	1,594		1,865
Sub-assembly	736		1,677
Finished goods	357		376
Total	$	7,476	$	6,330

The Company recorded inventory write-off of $2.8 million and $8 thousand for the three months ended December 31, 2022 and 2021, respectively. The Company recorded inventory write-off of $2.8 million and

$0.2 million for the nine months ended December 31, 2022 and 2021, respectively. The inventory write-offs 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.