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BALANCE SHEET INFORMATION
 6 Months Ended 12 Months Ended
Sep. 30, 2024
Mar. 31, 2024
Balance Sheet Related Disclosures [Abstract]    
BALANCE SHEET INFORMATION BALANCE SHEET INFORMATION
Certain significant amounts included in the Company's condensed consolidated balance sheets consist of the following (in thousands):
Manufacturing inventories
September 30, 2024March 31, 2024
Finished goods
$9,349 $7,074 
Work in progress
668 769 
Raw materials
8,948 9,910 
Total manufacturing inventories$18,965 $17,753 
Service parts inventories
September 30, 2024March 31, 2024
Finished goods
$6,300 $3,660 
Component parts
2,728 6,123 
Total service parts inventories$9,028 $9,783 
Intangibles, net
September 30, 2024March 31, 2024
GrossAccumulated AmortizationNetGrossAccumulated AmortizationNet
Developed technology
$9,013 $(9,013)$— $9,013 $(8,550)$463 
Customer lists
4,398 (3,656)742 4,398 (3,192)1,206 
Intangible assets, net$13,411 $(12,669)$742 $13,411 $(11,742)$1,669 
Intangible assets amortization expense was $0.5 million and $1.0 million and $0.9 million and $2.1 million for the three and six months ended September 30, 2024 and 2023, respectively. As of September 30, 2024, the remaining weighted-average amortization period for definite-lived intangible assets was approximately 0.8 years. The Company recorded amortization of developed technology in cost of product revenue, and customer lists in sales and marketing expenses in the condensed consolidated statements of operations.
As of September 30, 2024, the future expected amortization expense for intangible assets is as follows (in thousands):
Fiscal year ending Estimated future amortization expense
Remainder of 2025$461 
2026281 
Total$742 
Goodwill
As of September 30, 2024 and March 31, 2024, goodwill was $13.0 million. There were no impairments to goodwill as of September 30, 2024 and March 31, 2024.
Other long-term assets
September 30, 2024March 31, 2024
Capitalized SaaS implementation costs for internal use$14,880 $15,349 
Capitalized debt costs2,664 1,923 
Contract asset1,357 1,477 
Deferred taxes759 734 
Other424 257 
Total other long-term assets
$20,084 $19,740 
Other accrued liabilities
September 30, 2024March 31, 2024
Accrued expenses$6,646 $4,251 
Asset retirement obligation2,769 2,069 
Accrued warranty1,353 1,545 
Accrued interest458 524 
Lease liability1,375 1,256 
Accrued income taxes365 1,044 
Other3,535 3,297 
Total other accrued liabilities$16,501 $13,986 
The following table details the change in the accrued warranty balance (in thousands):
September 30, 2024March 31, 2024
Beginning balance$1,545 $2,094 
Current period accruals
1,172 2,563 
Adjustments to prior estimates
52 (141)
Charges incurred
(1,416)(2,971)
Ending balance$1,353 $1,545 
 BALANCE SHEET INFORMATION
Certain significant amounts included in the Company's consolidated balance sheets consist of the following (in thousands):
Manufacturing inventories
March 31,
202420232022
Manufactured finished goods
$7,074 $6,958 $14,607 
Work in progress
769 1,304 2,546 
Raw materials
9,910 11,179 16,393 
Total manufacturing inventories
$17,753 $19,441 $33,546 
Service inventories
March 31,
202420232022
Finished goods$3,660 $19,834 $19,234 
Component parts6,123 5,470 5,020 
Total service inventories
$9,783 $25,304 $24,254 
Property and equipment, net
March 31,
202420232022
Machinery and equipment, and software$49,095 $48,534 $47,777 
Leasehold improvements12,473 14,405 6,029 
Furniture and fixtures1,109 863 844 
62,677 63,802 54,650 
Less: accumulated depreciation(50,649)(47,247)(41,797)
Total property, plant and equipment, net
$12,028 $16,555 $12,853 
Depreciation expense for property and equipment amounted to $6.0 million, $5.5 million, and $5.7 million for the years ended March 31, 2024, 2023, and 2022, respectively.
Intangibles, net
March 31, 2024March 31, 2023March 31, 2022
GrossAccumulated AmortizationNetGrossAccumulated AmortizationNetGrossAccumulated AmortizationNet
Developed technology
$9,013 $(8,550)$463 $9,013 $(6,269)$2,744 $9,208 $(3,121)$6,087 
Customer lists
4,398 (3,192)1,206 4,398 (2,201)2,197 4,600 (1,103)3,497 
Intangible assets, net$13,411 $(11,742)$1,669 $13,411 $(8,470)$4,941 $13,808 $(4,224)$9,584 
Intangible assets amortization expense was $3.3 million, $4.6 million, and $3.7 million for the years ended March 31, 2024, 2023, and 2022, respectively. As of March 31, 2024, the remaining weighted-average amortization period for definite-lived intangible assets was approximately 0.9 years. The Company recorded amortization of developed technology in cost of product revenue, and customer lists in sales and marketing expenses in the consolidated statements of operations.
As of March 31, 2024, the future expected amortization expense for intangible assets is as follows (in thousands):
Fiscal year ending
Estimated future amortization expense
2025$1,388 
Thereafter281 
Total$1,669 
Goodwill
Amount
Balance at March 31, 2022$12,969 
Goodwill acquired— 
Balance at March 31, 2023$12,969 
Goodwill acquired— 
Balance at March 31, 2024
$12,969 
Other long-term assets
March 31,
202420232022
Capitalized SaaS implementation costs for internal use$15,349 $11,483 $6,261 
Capitalized debt costs1,923 1,690 1,779 
Contract asset1,477 1,247 699 
Deferred taxes734 1,054 866 
Other257 372 320 
Total other long-term assets
$19,740 $15,846 $9,925 
Other accrued liabilities
March 31,
202420232022
Accrued expenses
$4,251 $1,988 $4,984 
Asset retirement obligation
2,069 2,513 4,590 
Accrued income taxes
1,044 1,509 943 
Accrued warranty
1,545 2,094 1,899 
Accrued interest
524 494 278 
Lease liability1,256 1,364 1,727 
Other
3,297 3,704 2,141 
Total other accrued liabilities
$13,986 $13,666 $16,562 
The following table details the change in the accrued warranty balance (in thousands):
 Year Ended March 31,
202420232022
Balance as of April 1$2,094 $1,899 $2,383 
Current period accruals
2,563 3,477 3,717 
Adjustments to prior estimates
(141)(18)(156)
Charges incurred
(2,971)(3,264)(4,045)
Balance as of March 31$1,545 $2,094 $1,899