Revenue

9 Months Ended

Sep. 30, 2023

Revenue from Contract with Customer [Abstract]

Revenue

5. Revenue

The following table presents Company’s revenues disaggregated by geography (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Service revenue:
United States	$	14,200	$	8,290	$	32,307	$	25,452
Europe		9,187		8,065		20,503		18,515
Total service revenue		23,387		16,355		52,810		43,967
Lease revenue:
United States	$	217	$	210	$	647	$	654
Europe		195		173		482		404
Total lease revenue		412		383		1,129		1,058
Total Revenue	$	23,799	$	16,738	$	53,939	$	45,025

Contract Balances

Contract assets include amounts related to the Company’s contractual right to consideration for completed performance obligations not yet invoiced. The contract assets are reclassified to receivables when the rights become unconditional. The Company’s contract assets as of September 30, 2023 and December 31, 2022 in the amount of $0.6 million and $0.6 million, respectively, are included in prepaid expenses and other current assets on the consolidated balance sheets. The contract assets are typically invoiced within a month of recognition. The Company's contract assets as of January 1, 2023 and 2022 amounted to $0.6 million and $0.7 million, respectively.

Contract liabilities are recorded as deferred revenues and include payments received in advance of performance under the contract. Contract liabilities are realized when services are provided to the customer. Contract liabilities as of September 30, 2023 and December 31, 2022 in the amount of $0.9 million and $0.7 million, respectively, are reported as a component of current liabilities on the consolidated balance sheets. All opening amounts of the December 31, 2022 and 2021 contract liabilities were recognized during the periods ended September 30, 2023 and December 31, 2022, respectively. The Company's contract liabilities as of January 1, 2023 and 2022 amounted to $0.7 million and $0.3 million, respectively.