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v3.22.2.2

Balance Sheet Components - Additional Information (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2022 USD ($) Customer | Sep. 30, 2021 USD ($) Customer | Dec. 31, 2021 USD ($) Customer
Schedule Of Balance Sheet Components [Line Items] |  |  |  |  |
Accounts receivable, net | $ 50,533,000 |  | $ 50,533,000 |  | $ 24,452,000
Percentage of Non-US revenue invoiced in Euros | 48.30% | 71.00% | 70.50% | 71.90% |
Transfer of inventory to rental equipment |  |  | $ 998,000 | $ 817,000 |
Salvage value of expenditures for additions, improvements and replacements | $ 0 |  | 0 |  |
Repairs and maintenance expense | 1,059,000 | $ 858,000 | 3,289,000 | 2,531,000 |
Depreciation and amortization | 3,778,000 | $ 3,367,000 | 11,089,000 | 9,239,000 |
Impairments of long-lived assets |  |  | 0 | 0 |
Goodwill impairment loss |  |  | 0 |  |
Impairment of finite lived intangible assets |  |  | 0 |  | 0
Construction in Process and Computer Software or Development Cost |  |  |  |  |
Schedule Of Balance Sheet Components [Line Items] |  |  |  |  |
Depreciation and amortization |  |  | 0 | $ 0 |
Other Noncurrent Assets |  |  |  |  |
Schedule Of Balance Sheet Components [Line Items] |  |  |  |  |
Noncurrent inventories expected to be realized or consumed | 1,039,000 |  | 1,039,000 |  | 1,943,000
Prepaid Expenses and Other Current Assets |  |  |  |  |
Schedule Of Balance Sheet Components [Line Items] |  |  |  |  |
Inventory raw materials | 9,756,000 |  | 9,756,000 |  | 15,426,000
Customer Concentration Risk | Customer One |  |  |  |  |
Schedule Of Balance Sheet Components [Line Items] |  |  |  |  |
Accounts receivable, net | 19,301,000 |  | 19,301,000 |  | 5,945,000
Customer Concentration Risk | Customer Two |  |  |  |  |
Schedule Of Balance Sheet Components [Line Items] |  |  |  |  |
Accounts receivable, net | 7,220,000 |  | 7,220,000 |  |
Customer Concentration Risk | Medicare's Service Reimbursement Programs |  |  |  |  |
Schedule Of Balance Sheet Components [Line Items] |  |  |  |  |
Accounts receivable, net | $ 2,459,000 |  | $ 2,459,000 |  | $ 2,685,000
Sales Revenue, Net | Customer Concentration Risk |  |  |  |  |
Schedule Of Balance Sheet Components [Line Items] |  |  |  |  |
Number of customers | Customer |  |  |  | 1 |
Sales Revenue, Net | Customer Concentration Risk | Medicare's Service Reimbursement Programs |  |  |  |  |
Schedule Of Balance Sheet Components [Line Items] |  |  |  |  |
Concentration Risk, Percentage |  |  | 11.20% | 9.70% |
Net Accounts Receivable | Customer Concentration Risk |  |  |  |  |
Schedule Of Balance Sheet Components [Line Items] |  |  |  |  |
Number of customers | Customer |  |  | 2 |  | 1
Net Accounts Receivable | Customer Concentration Risk | Medicare's Service Reimbursement Programs |  |  |  |  |
Schedule Of Balance Sheet Components [Line Items] |  |  |  |  |
Concentration Risk, Percentage |  |  | 4.90% |  | 11.00%
Rental Revenue | Customer Concentration Risk | Medicare's Service Reimbursement Programs |  |  |  |  |
Schedule Of Balance Sheet Components [Line Items] |  |  |  |  |
Concentration Risk, Percentage |  |  | 77.80% | 82.60% |
Raw materials | Supplier Concentration Risk | Vendor one |  |  |  |  |
Schedule Of Balance Sheet Components [Line Items] |  |  |  |  |
Concentration Risk, Percentage |  |  | 27.00% | 17.00% |
Raw materials | Supplier Concentration Risk | Vendor two |  |  |  |  |
Schedule Of Balance Sheet Components [Line Items] |  |  |  |  |
Concentration Risk, Percentage |  |  | 20.20% | 12.60% |
Raw materials | Supplier Concentration Risk | Vendor three |  |  |  |  |
Schedule Of Balance Sheet Components [Line Items] |  |  |  |  |
Concentration Risk, Percentage |  |  | 8.40% | 10.80% |

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