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Certain Balance Sheet Accounts - Additional Information (Details) - USD ($) | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023 | Jul. 07, 2023 | Jul. 06, 2023
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Intangible assets, net | $ 2,224,000 |  | $ 2,224,000 |  | $ 2,210,000 |  |
Accumulated amortization | 310,000 |  | 310,000 |  | 280,000 |  |
Capitalized software development costs | 1,873,000 |  | 1,873,000 |  | 1,873,000 |  |
Capitalized computer software, amortization | 0 | $ 0 | 0 | $ 0 |  |  |
Impairment of intangible assets, finite-lived | 0 | 0 | 0 | 0 |  |  |
Accrued sales return current | $ 998,000 |  | $ 998,000 |  | $ 2,919,000 |  |
Convertible preferred stock |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Preferred stock, shares authorized (in shares) | 10,741,071 |  | 10,741,071 |  | 10,741,071 | 10,741,071 | 100,000,000
Preferred stock, par value (in dollars per share) | $ 0.0001 |  | $ 0.0001 |  | $ 0.0001 |  |
Preferred stock, shares outstanding (in shares) | 36,450 |  | 36,450 |  | 28,628 |  |
Tooling and manufacturing equipment |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Depreciation and amortization expense | $ 84,000 | 148,000 | $ 169,000 | 330,000 |  |  |
Property and Equipment |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Depreciation and amortization expense | $ 90,000 | $ 225,000 | $ 184,000 | $ 500,000 |  |  |

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- Definition Amount of expense for amortization of capitalized computer software costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 985 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481283/985-20-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(1) -SubTopic 20 -Topic 985 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481283/985-20-50-1 + Details
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