Accounts Receivable (Tables)

9 Months Ended

Sep. 30, 2019

Receivables [Abstract]

Accounts Receivable

	September 30, 2019		December 31, 2018
	(in thousands)
Accounts receivable	$	56,436	$	54,342
Less:  Allowance for doubtful accounts	(353)		(264)
Total, net	$	56,083	$	54,078

Allowance for Doubtful Accounts

	Three months ended				Nine months ended
	September 30, 2019		September 30, 2018		September 30, 2019		September 30, 2018
Allowance for doubtful accounts:	(in thousands)
Balance, beginning of period	$	392	$	208	$	264	$	119
Provisions for losses on accounts receivables, net of adjustments	(37)		(31)		91		67
Accounts receivable written off, net of recoveries	(2)		—		(2)		(9)
Balance, end of period	$	353	$	177	$	353	$	177