Cash, Cash Equivalents, Restricted Cash and Marketable Securities (Details Narrative) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
Jun. 30, 2021 |
Jun. 30, 2020 |
Dec. 31, 2020 |
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| Cash and Cash Equivalents [Abstract] | |||||
| Marketable securities, unrealized gain loss | $ 85 | $ 42 | $ 177 | $ 481 | |
| Net accumulated unrealized gain | $ 51 | $ 51 | $ 228 | ||
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- Definition Accumulated unrealized gain. No definition available.
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- References No definition available.
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- Definition Amount of unrealized gain (loss) on investment in marketable security. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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