Revenue from Contracts with Customers (ASC 606) (Tables)

9 Months Ended

Sep. 30, 2021

Revenue from Contract with Customer [Abstract]

Net Sales from Contracts with Customers

The following table summarizes net sales from contracts with customers for the three and nine months ended September 30, 2021 and 2020:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2021		2020		2021		2020
Mobile connectivity product, transferred at point in time	$	6,361	$	6,671	$	19,741	$	18,737
Mobile connectivity product, transferred over time	490		549		2,047		1,778
Mobile connectivity service	27,537		24,163		76,862		68,950
Inertial navigation product	8,388		9,430		29,152		23,178
Inertial navigation service	208		299		837		1,963
Total net sales	$	42,984	$	41,112	$	128,639	$	114,606