Note 10 - Income Taxes - Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands |
Dec. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Deferred tax assets/(liabilities) | ||
| Net operating loss carryforwards | $ 58,301 | $ 53,167 |
| Accruals and reserves | 6,425 | 4,011 |
| Depreciation and amortization | 5,482 | 1,383 |
| Indefinite-lived intangibles | 2,226 | 271 |
| Deferred revenue | 418 | |
| Other | 2,359 | 2,184 |
| Total deferred tax assets | 74,793 | 61,434 |
| Less valuation allowance | (74,793) | (61,434) |
| Net deferred tax assets |