Balance Sheet Components (Tables)

9 Months Ended

Dec. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

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


	December 31, 2023		March 31, 2023
Raw materials	$	4,669	$	5,167
Work in process	2,181		1,719
Sub-assembly	2,083		809
Finished goods	1,072		711
Total	$	10,005	$	8,406

Schedule of Property and Equipment

Property and equipment, net consist of the following as of the dates presented (in thousands):


	December 31, 2023		March 31, 2023
Machinery and equipment	$	14,193	$	11,124
Computer equipment and software	890		887
Furniture and fixtures	73		75
Leasehold improvements	5,101		5,069
Construction in progress	3,462		6,446
Property and equipment, gross	23,719		23,601
Less: accumulated depreciation	(16,040)		(15,711)
Property and equipment, net	$	7,679	$	7,890

Schedule of Carrying Value of Intangible Assets

The carrying values of intangible assets as of the dates presented, respectively, consist of the following (in thousands, except years):


	December 31, 2023
	Gross		Accumulated Amortization		Foreign Exchange Rate Changes		Net		Estimated Useful Life (in years)
Patents	$	2,963	$	(2,864)	$	—	$	99	10
Developed Technology - 150 V	560		(517)		(43)		—		6
Developed Technology - 600 V	1,701		(1,570)		(131)		—		6
Total	$	5,224	$	(4,951)	$	(174)	$	99


	March 31, 2023
	Gross		Accumulated Amortization		Foreign Exchange Rate Changes		Net		Estimated Useful Life (in years)
Patents	$	2,963	$	(2,642)	$	—	$	321	10
Developed Technology - 150 V	560		(517)		(43)		—		6
Developed Technology - 600 V	1,701		(1,570)		(131)		—		6
Total	$	5,224	$	(4,729)	$	(174)	$	321

Schedule of Estimated Future Amortization Expenses Related to Intangible Assets

Estimated future amortization expenses related to intangible assets as of December 31, 2023 were as follows (in thousands):


Year Ending March 31,
2024	$	74
2025	25
Total	$	99

Schedule of Goodwill

Changes in the carrying amount of goodwill were as follows (in thousands):


Balance as of March 31, 2022	$	1,180
Foreign currency translation adjustments	(101)
Balance as of March 31, 2023	$	1,079
Foreign currency translation adjustments	(59)
Balance as of December 31, 2023	$	1,020

Schedule of Accrued Expenses

Accounts payable and accrued expenses consist of the following as of the dates presented (in thousands):


	December 31, 2023		March 31, 2023
Accounts payable	$	4,232	$	2,781

Manufacturing production costs	1,017		506
Legal fees	842		596
Audit fees	50		318
Consulting fees	209		256
Royalty fees	221		76
Deposit liability	—		2,950
Equipment sale buyback liability	2,100		—
Other	635		412
Accrued expenses	$	5,074	$	5,114

Total Accounts payable and accrued expenses	$	9,306	$	7,895

- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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+ Details

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