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Composition of Certain Consolidated Financial Statement Items (Tables)

12 Months Ended

Dec. 31, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Inventory

Inventory (in thousands):

									December 31,
									2021						2020
Raw materials									$	6,740					$	2,647
Work-in-process									905						51
Finished goods									5,502						4,226
Total inventory									$	13,147					$	6,924

Prepaid Expenses and Other Current Assets

Prepaid Expenses and Other Current Assets (in thousands):

									December 31,
									2021						2020
Insurance									$	2,333					$	124
Inventory									830						553
Software									428						375
Rent									253						245
Other									398						356
Total prepaid expenses and other current assets									$	4,242					$	1,653

Property and Equipment, net

Property and Equipment, Net (in thousands):

									December 31,
									2021						2020
Laboratory, manufacturing and computer equipment, and furniture and fixtures									$	2,874					$	2,645
Rental equipment									1,082						1,247
Leasehold improvements									4,941						4,941
Evaluation units									2,842						4,229
Total property and equipment									11,739						13,062
Less: accumulated depreciation and amortization									(6,694)						(4,788)
Total property and equipment, net									$	5,045					$	8,274

Other Current Liabilities

Other Current Liabilities (in thousands):

									December 31,
									2021						2020
Accrued purchases									1,105						432
Customer deposit									741						—
Professional services									600						339
Sales tax									515						302
Interest									405						403
Travel expenses									281						138
Clinical trial expenses									183						47
Other									778						316
Total other current liabilities									$	4,608					$	1,977

Schedule of Interest and Other Income (Expense), net

Interest and Other Income (Expense), net (in thousands):

									Year Ended December 31,
									2021						2020
Interest income									$	76					$	184
Decrease in fair value of preferred stock warrants									64						185
Decrease (increase) in fair value of loan facility derivative liability									135						(300)
Other									(154)						(25)
Total interest and other income, net									$	121					$	44

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- Definition

Tabular disclosure of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer; the aggregate carrying amount of current assets, not separately presented elsewhere in the balance sheet; and other deferred costs.

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-SubTopic 10
-Section S99
-Paragraph 1
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Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

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