Accounts and Financing Receivables - Trade Accounts Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Current trade accounts receivable
Trade accounts receivable	$ 12,635	$ 14,090
Allowance for doubtful accounts	(428)	(496)
Total current trade accounts receivable	$ 12,207	$ 13,594

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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Balance Type:	debit
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