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v3.20.2

Term Loan Obligations (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  |  |  |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 29, 2020 | Mar. 28, 2020 | Apr. 29, 2019 | Apr. 25, 2019 | May 29, 2015 | Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2018
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Warrant exercise price (in dollars per share) |  |  |  |  |  | $ 2.25 |  | $ 2.25 |  |
Interest expense |  |  |  |  |  | $ 253 | $ 366 | $ 854 | $ 1,477 |
Non-cash amortization |  |  |  |  |  | $ 100 | $ 100 | $ 400 | $ 400 |
Loan and Security Agreement [Member] | Sale of the Japanese Subsidiary and Certain Assets [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Payments for principal, interest and fees |  |  |  | $ 1,400 |  |  |  |  |  |
Term Loan [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Origination Date |  |  |  |  | May 29, 2015 |  |  |  |  |
Original Loan Amount |  |  |  |  | $ 17,700 |  |  |  |  |
Basis variable rate |  |  |  |  | 7.95% |  |  |  |  |
Maturity date | Sep. 01, 2024 | Sep. 01, 2021 |  |  | Sep. 01, 2024 |  |  |  |  |
Fees amount associated with loan |  |  |  |  | $ 3,200 |  |  |  |  |
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
Debt principal repayment start date | May 01, 2021 |  | May 01, 2020 |  |  |  |  |  |  |
Prepayments of term loan | $ 5,000 |  |  |  |  |  |  |  |  |
Related final payment | 300 |  |  |  |  |  |  |  |  |
Term loan, remaining amount | 4,300 |  |  |  |  |  |  |  |  |
Amendment fee | $ 1,000 |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |
Term Loan [Member] | LIBOR [Member] | Interest Rate Floor [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Basis variable rate |  |  |  |  | 1.00% |  |  |  |  |
Term Loan [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 8.95% |  |  |  |  |
Term Loan [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Amount of loan outstanding threshold in order to release intellectual property asset collateral |  |  |  |  |  |  |  | $ 4,300 |  |

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