ACCOUNTS RECEIVABLE (Tables)

12 Months Ended

Dec. 31, 2018

Accounts Receivable Net Current Abstract

Summary of Accounts Receivable

Accounts receivable consisted of the following as of December 31, 2017 and 2018:

	December 31, 2017			December 31, 2018
Trade accounts receivable	$	1,798		$	1,403
Allowance for doubtful accounts		(465	)		—
Accounts receivable—net	$	1,333		$	1,403