Schedule of Accrued Expenses (Details) (Parenthetical) - USD ($) $ in Thousands |
Mar. 31, 2021 |
Dec. 31, 2020 |
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| CFF Agreement [Member] | ||
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||
| Deferred liability | $ 153 | $ 577 |
| Genentech Feasibility Study Agreement [Member] | ||
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||
| Deferred revenue | $ 33 | $ 67 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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