Accounts Receivable, Net (Tables)

3 Months Ended

Mar. 31, 2018

Accounts Receivable Net [Abstract]

Schedule of Accounts Receivable Net

Accounts receivable, net is as follows (in thousands):

	As of			As of
	March 31, 2018			December 31, 2017
Accounts receivable	$	23,030		$	32,662
Allowance for doubtful accounts		(637	)		(963	)
Net accounts receivable	$	22,393		$	31,699

Schedule of Changes in Allowance for Doubtful Accounts

The following table summarizes the changes in the allowance for doubtful accounts (in thousands):

	Three Months Ended March 31,
	2018			2017
Balance, beginning of period	$	(863	)	$	(374	)
Additions		192			—
Write-offs		34			15
Balance, end of period	$	(637	)	$	(359	)

Schedule of Changes in Sales Reserve

The following table summarizes the changes in the sales reserve (in thousands):

	Three Months Ended March 31,
	2018			2017
Balance, beginning of period	$	(100	)	$	(45	)
Additions		—			(80	)
Write-offs		22			—
Balance, end of period	$	(78	)	$	(125	)