Trade Accounts Receivable (Tables)

3 Months Ended

Mar. 31, 2022

Receivables [Abstract]

Summary of Trade Accounts Receivable

Trade accounts receivable are recorded at the contractual or invoiced amount.

	March 31,			December 31,
	2022			2021
Trade accounts receivable, current	$	5,973		$	6,393
Trade accounts receivable, long-term		123			186
Allowance for doubtful accounts		(39	)		(25	)
Trade accounts receivable, net	$	6,057		$	6,554
Unpaid deferred revenue included in trade    accounts receivable	$	1,206		$	1,891

Customers Accounted for 10% or More of Trade Accounts Receivable, Net

The following customers accounted for 10% or more of trade accounts receivable, net:

	March 31,			December 31,
	2022			2021
Company A		35	%		43	%
Company B	*				15	%
Company C	*				11	%

*Less than 10%