Accrued Expenses and Other Current Liabilities (Tables)

12 Months Ended

Sep. 30, 2020

Payables and Accruals [Abstract]

Schedule of components of accrued expenses and other current liabilities

	As of September 30,
(in thousands)	2020		2019
Compensation	$	6,916	$	5,185
Warranty		803		654
Legal expenses and other professional fees		211		4,407
Contract liabilities		502		541
Income and other taxes		1,265		1,135
Severance and restructuring accruals		17		172
Other		1,863		2,427
Accrued expenses and other current liabilities	$	11,577	$	14,521

Schedule of Restructuring and Related Costs

	Severance-		Restructuring
(in thousands)	related accruals		related accruals		Total
Balance as of September 30, 2019	$	172	$	—	$	172
Expense - charged to accrual		626		—		626
Payments and accrual adjustments		(781)		—		(781)
Balance as of September 30, 2020	$	17	$	—	$	17

Schedule of Product Warranty Accruals

Product Warranty Accruals	For the fiscal year ended September 30,
(in thousands)	2020		2019		2018
Balance at beginning of period	$	654	$	642	$	684
Provision for product warranty - expense		626		186		431
Warranty liability assumed in acquisition liability		—		80		—
Adjustments and utilization of warranty accrual		(477)		(254)		(473)
Balance at end of period	$	803	$	654	$	642