Cost of Sales (Details) - USD ($) |
6 Months Ended | |
|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
|
| Inventory | ||
| Cost of product sales | $ 0 | $ 5,166,000 |
| Lower of cost or NRV adjustments | 3,508,000 | 4,456,000 |
| Cost of sales | $ 3,508,000 | $ 9,622,000 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|