Revenue from Contracts with Customers (Tables)

3 Months Ended

Mar. 31, 2021

Revenue from Contract with Customer [Abstract]

Schedule of disaggregation of revenue

Revenue disaggregated by revenue source is as follows (in thousands):

	Three months ended March 31,
	2021		2020
Revenue:
Products	$	11,082	$	18,800
Services	688		616
	$	11,770	$	19,416