Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

	THREE MONTHS ENDED				SIX MONTHS ENDED
	JUNE 30				JUNE 30
	2021		2020		2021		2020
Timing of Revenue Recognition
Goods transferred at a point in time	$	20,117	$	20,976	$	41,495	$	41,260
Services transferred over time	25,779		14,379		49,506		31,739
Total revenues	$	45,896	$	35,355	$	91,001	$	72,999

Contract Balances

The opening and closing balances of the Company’s current and long-term accounts receivable, contract assets and contract liabilities are as follows:

	Contract balances
	Trade accounts receivable, net		Contract asset (long-term)		Contract liability (current)		Contract liability (long-term)
Balance, January 1, 2021	$	18,894	$	4,984	$	941	$	3,626
Balance, June 30, 2021	21,277		5,321		868		4,113
Increase (decrease)	$	2,383	$	337	$	(73)	$	487