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v3.23.1

Term Loan Obligations - Additional Information (Details) - USD ($) |  |  |  | 3 Months Ended
--- | --- | --- | --- | ---
Mar. 29, 2020 | Mar. 28, 2020 | May 29, 2015 | Mar. 31, 2023 | Mar. 31, 2022
Debt Instrument [Line Items] |  |  |  |  |
Interest expense |  |  |  | $ 134,000 | $ 198,000
Non-cash amortization |  |  |  | $ 100,000 | $ 100,000
LIBOR [Member] | Interest Rate Floor [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis variable rate |  |  | 1.00% |  |
Term Loan [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Origination date |  |  |  | May 29, 2015 |
Original loan amount |  |  | $ 17,700,000 |  |
Basis variable rate |  |  | 7.95% |  |
Maturity date | Jun. 01, 2024 | Sep. 01, 2021 | May 01, 2021 |  |
Fees amount associated with loan |  |  | $ 3,200,000 | $ 3,200,000 |
Number of shares callable by warrants (in shares) |  |  | 188 |  |
Warrant exercise price (in dollars per share) |  |  | $ 5,175 |  |
Date from which warrants are exercisable |  |  |  | Nov. 30, 2015 |
Warrant expiration date |  |  |  | May 29, 2025 |
Minimum liquidity covenant |  |  |  | $ 2,000,000.0 |
Debt principal repayment start date | May 01, 2021 | May 01, 2020 |  |  |
Debt instrument, covenant compliance |  |  |  | the Company was in compliance with all of the debt covenants under the Loan and Security Agreement. |
Term Loan [Member] | Loan and Security Agreement [Member] | Sale of the Japanese Subsidiary and Certain Assets [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Payments for principal, interest and fees |  |  | $ 3,100,000 |  |
Term Loan [Member] | Minimum [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  |  | 8.95% |  |
Term Loan [Member] | Maximum [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Original loan amount |  |  |  | $ 3,000,000.0 |
Long term debt outstanding threshold amount |  |  |  | $ 2,000,000.0 |

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