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Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Revenue by Geographic Area

Revenue by geographic area based on the billing address of the customers were as follows:

			Three months ended September 30,												Nine months ended September 30,
			2021						2020						2021						2020
			(In thousands)
United States			$	7,103					$	659					$	15,349					$	9,290
Other			1,608						1,614						1,680						2,943
Total			$	8,711					$	2,273					$	17,029					$	12,233

Disaggregation of Revenue

The following table summarizes revenue disaggregated by products and service type:

			Three months ended September 30,												Nine months ended September 30,
			2021						2020						2021						2020
			(In thousands)
3D Printers			$	7,281					$	1,738					$	13,594					$	11,038
Recurring Payment (defined below)			596						146						1,231						146
Support services			834						389						2,204						1,049
Total			$	8,711					$	2,273					$	17,029					$	12,233

Schedules of Concentration of Risk

The customer concentration for balances greater than 10% of revenues and 10% of accounts receivables, net, respectively, are presented below:

			Total Revenue												Total Revenue												Accounts Receivable, Net
			Three months ended September 30,												Nine months ended September 30,												September 30						December 31
			2021						2020						2021						2020						2021						2020
			(as a percentage)												(as a percentage)												(as a percentage)
Customer 1			53.9		%				10.0		%				31.4		%				<10%						<10%						<10%
Customer 2			17.2		%				—		%				<10%						—		%				<10%						—		%
Customer 3			15.1		%				—		%				16.6		%				—		%				<10%						—		%
Customer 4			<10%						17.7		%				11.5		%				58.5		%				55		%				85.6		%
Customer 5			<10%						<10%						10.8		%				13.3		%				<10%						—		%
Customer 6			<10%						<10%						<10%						13.1		%				—		%				<10%
Customer 7			<10%						<10%						<10%						10.8		%				<10%						<10%
Customer 8			<10%						<10%						<10%						<10%						17.4		%				—		%

Schedule of Cash and Cash Equivalents

			September 30, 2021						December 31, 2020
			(In thousands)
Cash and cash equivalents			$	296,826					$	15,517
Restricted cash (Other assets)			2,518						—
Total cash and cash equivalents, and restricted cash			$	299,344					$	15,517

Restrictions on Cash and Cash Equivalents

			September 30, 2021						December 31, 2020
			(In thousands)
Cash and cash equivalents			$	296,826					$	15,517
Restricted cash (Other assets)			2,518						—
Total cash and cash equivalents, and restricted cash			$	299,344					$	15,517

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