Quarterly report pursuant to Section 13 or 15(d)

BALANCE SHEET INFORMATION

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BALANCE SHEET INFORMATION
 3 Months Ended
Jun. 30, 2021
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
June 30, 2021 March 31, 2021
   Finished goods:
      Manufactured finished goods $ 12,948  $ 12,452 
      Distributor inventory 255  238 
         Total finished goods 13,203  12,690 
   Work in progress 2,419  2,074 
   Raw materials 12,050  9,703 
Total manufacturing inventories $ 27,672  $ 24,467 

Service parts inventories
June 30, 2021 March 31, 2021
   Finished goods $ 18,195  $ 18,773 
   Component parts 5,337  4,648 
Total service parts inventories $ 23,532  $ 23,421 

Intangibles, net
June 30, 2021 March 31, 2021
Gross Accumulated Amortization Net Gross Accumulated Amortization Net
   Developed technology $ 4,700  $ (863) $ 3,837  $ 4,700  $ (473) $ 4,227 
   Customer lists 900  (165) 735  900  (90) 810 
Intangible assets, net $ 5,600  $ (1,028) $ 4,572  $ 5,600  $ (563) $ 5,037 


Intangible assets amortization expense for the three months ended June 30, 2021 and 2020 was $0.5 million and $0, respectively. As of June 30, 2021, the remaining weighted-average amortization period for definite-lived intangible assets was approximately 2.5 years.

As of June 30, 2021, the future expected amortization expense for intangible assets is as follows (in thousands):
Fiscal year ending Estimated future amortization expense
Remainder of 2022 1,402 
2023 1,867 
2024 1,303 
Thereafter — 
Total $ 4,572