Annual report pursuant to Section 13 and 15(d)

BALANCE SHEET INFORMATION

v3.22.1
BALANCE SHEET INFORMATION
12 Months Ended
Mar. 31, 2022
Balance Sheet Related Disclosures [Abstract]  
BALANCE SHEET INFORMATION BALANCE SHEET INFORMATION
Certain significant amounts included in the Company's consolidated balance sheets consist of the following (in thousands):
Manufacturing inventories March 31,
2022 2021
Finished goods
   Manufactured finished goods $ 14,395  $ 12,452 
   Distributor inventory 212  238 
   Total finished goods 14,607  12,690 
   Work in progress 2,546  2,074 
   Raw materials 16,393  9,703 
      Total manufacturing inventories $ 33,546  $ 24,467 

Service inventories March 31,
2022 2021
Finished goods $ 19,234  $ 18,773 
Component parts 5,020  4,648 
   Total service inventories $ 24,254  $ 23,421 

Property and equipment, net March 31,
2022 2021
Machinery and equipment, and software $ 46,831  $ 38,327 
Leasehold improvements 6,029  7,080 
Furniture and fixtures 838  847 
  53,698  46,254 
Less: accumulated depreciation (40,845) (36,203)
   Total property, plant and equipment, net $ 12,853  $ 10,051 

Depreciation and amortization expense for property and equipment amounted to $9.4 million, $5.7 million, and $4.3 million for the years ended March 31, 2022, 2021, and 2020, respectively.

Intangibles, net March 31, 2022 March 31, 2021
Gross Accumulated Amortization Net Gross Accumulated Amortization Net
   Developed technology $ 9,208  $ (3,121) $ 6,087  $ 4,700  $ (473) $ 4,227 
   Customer lists 4,600  (1,103) 3,497  900  (90) 810 
Intangible assets, net $ 13,808  $ (4,224) $ 9,584  $ 5,600  $ (563) $ 5,037 

Intangible assets amortization expense was $3.7 million, $0.1 million for the years ended March 31, 2022 and 2021, respectively. There was no amortization expense for the year ended March 31, 2020. As of March 31, 2022, the remaining weighted-average amortization period for definite-lived intangible assets was approximately 2.4 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, 2022, the future expected amortization expense for intangible assets is as follows (in thousands):
Fiscal year ending Estimated future amortization expense
2023 $ 4,568 
2024 3,417 
2025 1,599 
Thereafter — 
Total $ 9,584 


Goodwill Amount
Balance at March 31, 2021 $ 3,466 
Goodwill acquired 9,503 
Balance at March 31, 2022
$ 12,969 

Other accrued liabilities March 31,
2022 2021
Accrued expenses
$ 4,984  $ 6,799 
Asset retirement obligation
4,590  2,906 
Accrued warranty
1,899  2,383 
Accrued interest
278  57 
Accrued restructuring —  580 
Other
4,811  6,029 
   Total other accrued liabilities $ 16,562  $ 18,754 

The following table details the change in the accrued warranty balance (in thousands):
  Year Ended March 31,
2022 2021 2020
Balance as of April 1 $ 2,383  $ 2,668  3,456 
   Current period accruals 3,717  4,699  3,516 
   Adjustments to prior estimates (156) (472) (114)
   Charges incurred (4,045) (4,512) (4,190)
Balance as of March 31 $ 1,899  $ 2,383  $ 2,668