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Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2020

Summary of Opening and Closing Balances of Contract Liabilities

The Company performs its obligations under a contract with a customer by transferring products and/or services in exchange for consideration from the customer. The Company typically invoices its customers as soon as control of an asset is transferred and a receivable for the Company is established. The Company, however, recognizes a contract liability when a customer prepays for goods and/or services and the Company has not transferred control of the goods and/or services. The opening and closing balances of the Company’s contract liabilities are as follows (in thousands):

	September 30,		December 31,
	2020		2019
Undelivered elements (training, installation, product and support services)	$	487	$	559
Extended warranty contracts		1,541		2,063
Total deferred revenue		2,028		2,622
Less long-term portion of deferred revenue		412		385
Total deferred revenue — long -term		412		385
Deferred revenue — current	$	1,616	$	2,237

Summary of Disaggregation of Revenues Related to Geographic Areas

The Company’s revenues related to the following geographic areas were as follows for the periods indicated (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
United States	$	4,755	$	4,949	$	10,079	$	16,962
International		1,784		3,697		4,181		10,655
	$	6,539	$	8,646	$	14,260	$	27,617

Summary of Revenues Disaggregated by Timing of Goods and Services Transferred

Information regarding revenues disaggregated by the timing of when goods and services are transferred is as follows (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
Revenue recognized over time	$	898	$	1,997	$	3,143	$	5,267
Revenue recognized at a point in time		5,641		6,649		11,117		22,350
Total	$	6,539	$	8,646	$	14,260	$	27,617

Summary of Sales by End Market

The Company’s sales by end market were as follows for the periods indicated (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
End-customer	$	5,087	$	3,727	$	9,845	$	11,068
Distributors		1,452		4,919		4,415		16,549
	$	6,539	$	8,646	$	14,260	$	27,617