Investments and Fair Value of Financial Instruments (Details 1) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands |
Dec. 31, 2020 |
Dec. 31, 2019 |
|---|---|---|
| Assets | ||
| Investments | $ 8,203 | |
| Liabilities | ||
| Contingent royalty obligation | 1,617 | 1,872 |
| Level 1 [Member] | ||
| Assets | ||
| Investments | 8,203 | |
| Liabilities | ||
| Contingent royalty obligation | ||
| Level 2 [Member] | ||
| Assets | ||
| Investments | ||
| Liabilities | ||
| Contingent royalty obligation | ||
| Level 3 [Member] | ||
| Assets | ||
| Investments | ||
| Liabilities | ||
| Contingent royalty obligation | $ 1,617 | $ 1,872 |
| X | ||||||||||
- Definition Fair value portion of arrangements with third parties, of contingent royalty obligation. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|