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Note 13 - Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
|  | For the Years Ended Year Ended December 31, |
|  | 2020 |  |  | 2019 |
Current provision |  |  |  |  |  |  |  |
Federal |  | $ | — |  |  | $ | — |
Foreign |  |  | — |  |  |  | — |
State |  |  | 51 |  |  |  | 57 |
Total current provision |  |  | 51 |  |  |  | 57 |
Deferred provision |  |  |  |  |  |  |  |
Federal |  |  | 3,464 |  |  |  | (558 | )
State |  |  | 588 |  |  |  | (453 | )
Total deferred provision |  |  | 4,052 |  |  |  | (1,011 | )
(Decrease) increase in deferred tax valuation allowance |  |  | (4,055 | ) |  |  | 992 |
Total provision for income taxes |  | $ | 48 |  |  | $ | 38 |
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
|  | As of Year Ended December 31, |
|  | 2020 |  |  | 2019 |
Current deferred tax assets, net of valuation allowance |  |  | — |  |  |  | — |
Noncurrent deferred income tax assets: |  |  |  |  |  |  |  |
Net operating loss carryforwards |  | $ | 67,673 |  |  | $ | 67,014 |
Intangible assets |  |  | 1,968 |  |  |  | 5,040 |
Accrual and reserves |  |  | 3,119 |  |  |  | 2,462 |
Other |  |  | 6 |  |  |  | 77 |
Total noncurrent deferred tax assets |  |  | 72,766 |  |  |  | 74,593 |
Valuation allowance |  |  | (70,066 | ) |  |  | (74,121 | )
Noncurrent deferred tax assets, net of valuation allowance |  |  | 2,700 |  |  |  | 472 |
Noncurrent deferred income tax liabilities: |  |  |  |  |  |  |  |
Fixed assets |  |  | 2,700 |  |  |  | 476 |
Total noncurrent deferred tax liabilities |  |  | 2,700 |  |  |  | 476 |
Net deferred income tax liability |  | $ | — |  |  | $ | (4 | )
Summary of Valuation Allowance [Table Text Block] |
Valuation allowance as of December 31, 2019 |  | $ | (74,121 | )
Gross decrease for current year activity |  |  | 4,055 |
Valuation allowance as of Balance at December 31, 2020 |  | $ | (70,066 | )
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
|  | For the Year Ended |
|  | December 31, |
|  | 2020 |  |  | 2019 |
Statutory U.S. federal income tax rate |  |  | 21.0 | % |  |  | 21.0 | %
State and local income taxes, net of federal income tax benefit |  |  | (8.0 | ) |  |  | 2.0 |
Permanent differences |  |  | (2.6 | ) |  |  | (0.4 | )
Change in valuation allowance |  |  | (15.9 | ) |  |  | (23.1 | )
Other |  |  | 2.7 |  |  |  | (0.5 | )
Effective income tax rate |  |  | (2.8 | )% |  |  | (1.0 | )%

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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- Definition Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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