Trade Accounts Receivable

3 Months Ended

Mar. 31, 2020

Receivables [Abstract]

Trade Accounts Receivable

8. Trade Accounts Receivable

Trade Accounts Receivable

Trade accounts receivable are recorded at the invoiced amount.

	March 31,			December 31,
	2020			2019
Trade accounts receivable	$	3,984		$	4,036
Allowance for doubtful accounts		(25	)		(15	)
Trade accounts receivable, net	$	3,959		$	4,021
Unpaid deferred revenue included in trade    accounts receivable	$	909		$	2,015

Allowance for Doubtful Accounts

The allowance for doubtful accounts is the Company’s best estimate of the amount of probable credit losses in the Company’s existing trade accounts receivable. The Company determines the allowance based on historical write-off experience and current information. The Company reviews its allowance for doubtful accounts each reporting period. Account balances are charged against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote.

Unpaid Deferred Revenue

The unpaid deferred revenue that is included in trade accounts receivable is billed in accordance with the provisions of the contracts with the Company’s customers.

Major Customers

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

	March 31,			December 31,
	2020			2019
Central Banks		66	%		69	%