Accounts and Financing Receivables (Tables)

12 Months Ended

Sep. 30, 2020

Receivables [Abstract]

Trade Accounts Receivable

Trade accounts receivable consisted of the following (in thousands):

	AS OF SEPTEMBER 30,
	2020			2019
Trade accounts receivable	$	14,090		$	25,144
Allowance for doubtful accounts		(496	)		(951	)
	$	13,594		$	24,193

Summary of Allowance for Doubtful Accounts

The following table summarizes changes in the Company’s allowance for doubtful accounts for the fiscal year ended September 30, 2020 (in thousands):

Balance at October 1, 2019	$	951
Bad debt expense, net of recoveries		63
Write-offs		(518	)
Balance at September 30, 2020	$	496

Financing Receivables

Financing receivables are reflected in the following table (in thousands):

	AS OF SEPTEMBER 30,
	2020			2019
Promissory notes	$	184		$	780
Sales-type lease		—			2,692
Total financing receivables		184			3,472
Unearned income:
Sales-type lease		—			(55	)
Total unearned income		—			(55	)
Total financing receivables, net of unearned income		184			3,417
Less current portion		(184	)		(3,233	)
Non-current financing receivables	$	—		$	184