Note 2 - Summary of Significant Accounting Policies - Restatement of Previously Issued Consolidated Financial Statements (Details) - USD ($) $ in Thousands |
Apr. 30, 2021 |
Jan. 31, 2021 |
Oct. 31, 2020 |
Apr. 30, 2020 |
Jan. 31, 2020 |
Oct. 31, 2019 |
|---|---|---|---|---|---|---|
| Warrant liabilities | $ 18,485 | $ 7,031 | $ 7,031 | |||
| Total liabilities | 493,687 | 481,360 | 481,648 | |||
| Additional paid-in capital | 371,703 | 368,353 | 367,681 | |||
| Accumulated deficit | (122,983) | (112,130) | (99,840) | |||
| Total stockholders' equity | $ 252,828 | 259,663 | $ 267,110 | $ 258,700 | $ 317,216 | $ 317,045 |
| Previously Reported [Member] | ||||||
| Warrant liabilities | 0 | |||||
| Total liabilities | 474,329 | |||||
| Additional paid-in capital | 362,615 | |||||
| Accumulated deficit | (99,361) | |||||
| Total stockholders' equity | 266,694 | |||||
| Revision of Prior Period, Adjustment [Member] | ||||||
| Warrant liabilities | 7,031 | |||||
| Total liabilities | 7,031 | |||||
| Additional paid-in capital | 5,738 | |||||
| Accumulated deficit | (12,769) | |||||
| Total stockholders' equity | $ (7,031) |
| X | ||||||||||
- Definition Amount of excess of issue price over par or stated value of stock and from other transaction involving stock or stockholder. Includes, but is not limited to, additional paid-in capital (APIC) for common and preferred stock. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|