Note 11 - Derivative Warrant Liabilities - Changes in Fair Value (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2020 |
Mar. 31, 2019 |
|
| Warrants Issued in May 2018 [Member] | ||
| Balance | $ 6,177 | |
| Issued during the year | 3,323 | |
| Amount transferred to Equity | (6,072) | (550) |
| Change in fair value | 1,115 | 3,579 |
| Translation effect | (35) | (175) |
| Balance | $ 1,185 | $ 6,177 |
| Fair value per warrant issuable (in dollars per share) | $ 0.17 | $ 0.62 |
| Warrants Issued December 27, 2017 [Member] | ||
| Balance | $ 6,005 | $ 4,987 |
| Issued during the year | ||
| Amount transferred to Equity | (4,770) | |
| Change in fair value | 1 | 1,166 |
| Translation effect | (28) | (147) |
| Balance | $ 1,208 | $ 6,006 |
| Fair value per warrant issuable (in dollars per share) | $ 0.18 | $ 0.63 |
| X | ||||||||||
- Definition Amount of gain (loss) due to foreign currency transactions on liability measured at fair value on recurring basis using unobservable input (level 3). No definition available.
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| X | ||||||||||
- Definition The fair value amount per share of issuable warrants and rights. No definition available.
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| X | ||||||||||
- Definition Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of issuances of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
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