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v3.20.4

Borrowings - Senior Note - Additional Information (Detail) $ / shares in Units, $ in Thousands |  |  |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Jan. 01, 2021 USD ($) shares | Oct. 09, 2020 USD ($) shares | Jun. 24, 2020 USD ($) shares | Aug. 06, 2019 d $ / shares | Aug. 31, 2019 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |
Principal amount |  |  |  |  |  | $ 122,900 |
Principal payments on senior convertible notes |  |  |  |  |  |  | $ 11,081
Bruce & Co.,Inc. |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Principal amount |  |  |  |  |  | 18,700 |
2021 Notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Senior notes outstanding |  |  |  |  |  | $ 5,000 | $ 10,200
2021 Notes | Bruce & Co.,Inc. |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Senior notes, effective interest rate |  |  |  |  | 5.75% |  |
2021 Notes | Privately Negotiated Exchange Agreement | Bruce & Co.,Inc. |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayments of aggregate principal amount |  |  |  |  | $ 1,500 |  |
Issuance of common stock to note holders | shares |  |  |  |  | 4,017,857 |  |
Exchange price per share | $ / shares |  |  |  |  | $ 1.12 |  |
2024 Convertible Notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
No of convertible shares |  |  |  | 333.3333 |  |  |
Principal amount per share | $ / shares |  |  |  | $ 1,000 |  |  |
Conversion price | $ / shares |  |  |  | $ 3.00 |  |  |
Debt default, description |  |  |  |  |  | If certain bankruptcy and insolvency-related events of default occurred while the 2024 convertible notes were outstanding, the principal of, and accrued and unpaid interest on, all of the then outstanding 2024 convertible notes would automatically become due and payable. If an event of default other than certain bankruptcy and insolvency-related events of defaults occurred and continued, the Trustee or the holders of at least 25% in aggregate principal amount of the then-outstanding 2024 convertible notes, by written notice to the Trustee, could declare the 2024 convertible notes due and payable at their principal amount plus any accrued and unpaid interest, and thereupon the Trustee may, at its discretion, proceed to protect and enforce the rights of the holders by the appropriate judicial proceedings. Notwithstanding the foregoing, the Indenture provides that, to the extent the Company elects, the sole remedy for an event of default relating to certain failures by the Company to comply with certain reporting covenants in the Indenture will, for the first 180 days after such event of default, consist exclusively of the right to receive additional interest on the 2024 convertible notes. The 2024 convertible notes also contain certain cross default provisions related to other debt obligations. |
Percentage of repurchase price |  |  |  | 100.00% |  |  |
Debt Instrument, redemption description |  |  |  |  |  | The Company may elect at its option to cause all or any portion of the 2024 convertible notes to be mandatorily converted in whole or in part at any time prior to the close of business on the business day immediately preceding the maturity date, if the last reported sale price of its common stock equals or exceeds 120% of the conversion price then in effect for at least 10 trading days in any 20 trading day period, ending within five business days prior to the date of the mandatory conversion notice. |
Percentage of conversion price equaling stock price |  |  |  | 120.00% |  |  |
Number of trading days | d |  |  |  | 10 |  |  |
Consecutive trading days |  |  |  | 20 days |  |  |
2024 Convertible Notes | Subsequent Event |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Issuance of common stock to note holders | shares | 1,666,667 |  |  |  |  |  |
Conversion of notes to common shares, value | $ 5,000 |  |  |  |  |  |
2024 Convertible Notes | Bruce & Co.,Inc. |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Senior notes, effective interest rate |  |  |  | 5.75% |  |  |
Principal amount |  |  |  |  | $ 5,000 |  |
Debt instrument, maturity date, description |  |  |  |  |  | The 2024 convertible notes will mature on the earlier of (i) November 4, 2024 or (ii) the 91st day after the payment in full of, and termination and discharge of all obligations (other than contingent indemnity obligations) under the MidCap Credit Facility. |
2024 Convertible Notes | Privately Negotiated Exchange Agreement | Bruce & Co.,Inc. |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Senior notes, effective interest rate |  |  |  |  | 5.75% |  |
June 2020 Note | Bruce & Co.,Inc. |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Exchange price per share | $ / shares |  |  |  |  | $ 2.13 |  |
Principal amount |  |  |  |  | $ 2,600 |  |
Maturity date |  |  |  |  | Jun. 30, 2020 |  |
Principal payments on senior convertible notes |  |  | $ 2,600 |  |  |  |
Issuance of common stock pursuant to conversion notes (in shares) | shares |  |  | 1,235,094 |  |  |  |
December 2020 Note | Bruce & Co.,Inc. |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Exchange price per share | $ / shares |  |  |  |  | $ 1.91 |  |
Principal amount |  |  |  |  | $ 2,600 |  |
Maturity date |  |  |  |  | Dec. 31, 2020 |  |
Principal payments on senior convertible notes |  | $ 2,600 |  |  |  |  |
Issuance of common stock pursuant to conversion notes (in shares) | shares |  | 1,377,356 |  |  |  |  |

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