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Accrued Expenses and Other Current Liabilities
 6 Months Ended
Mar. 31, 2022
Payables and Accruals [Abstract]  
Accrued Expenses and Other Current Liabilities Accrued Expenses and Other Current Liabilities
The components of accrued expenses and other current liabilities consisted of the following:
As of
(in thousands)March 31, 2022September 30, 2021
Compensation$5,028 $7,192 
Warranty1,112 1,125 
Legal expenses and other professional fees370 152 
Contract liabilities582 364 
Income and other taxes— 104 
Severance and restructuring accruals845 — 
Deferred revenue674 4 
Litigation settlement575 70 
Other1,284 925 
Accrued expenses and other current liabilities$10,470 $9,936