Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2021

Revenue from Contract with Customer [Abstract]

Schedule of contract liability

	September 30, 2021			December 31, 2020
Balance at beginning of period	$	177		$	516
Additions		1,750			353
Revenue recognized		(1,105	)		(692	)
Balance at end of period	$	822		$	177