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Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2023

Summary of Significant Accounting Policies

Schedule of company’s revenue disaggregated by category and source

		Three Months Ended March 31,
		2023				2022
		(in thousands)
Commercial		$	825			$	1,180
Government contracts			5				10
Equipment sales			—				9
Total revenue		$	830			$	1,199

Schedule of stock-based compensation included in cost of goods sold, research and development, and selling, general and administrative expenses

		Three Months Ended March 31,
		2023				2022
		(in thousands)
Cost of goods sold		$	538			$	644
Research and development			1,600				1,794
Selling, general and administrative			1,728				4,757
Total stock-based compensation expense		$	3,866			$	7,195

Schedule of diluted weighted average shares

		Three Months Ended March 31,
		2023				2022
		(in thousands, except per share amounts)
Numerator
Net loss attributable to common stockholders		$	16,349			$	9,711
Denominator
Weighted average shares – basic and diluted			106,405				100,868
Basic and diluted loss per share		$	(0.15	)		$	(0.10	)

Schedule of anti-dilutive unvested restricted stock units and unvested restricted stock awards

		Three Months Ended March 31,
Antidilutive Shares Excluded			2023				2022
		(in thousands)
Warrants			18,750				18,750
Stock Options			3,740				2,500
Unvested Restricted Stock Units			3,949				3,399
Unvested Restricted Stock Awards			208				1,070

Schedule of goodwill activities

Goodwill - January 1, 2023	$	17,493
Changes in foreign exchange rates		328
Goodwill - March 31, 2023	$	17,821

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