Note 2 - Significant Accounting Policies (Details Textual) - USD ($) |
9 Months Ended | 11 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|---|
Dec. 31, 2017 |
Dec. 05, 2018 |
Oct. 31, 2018 |
Oct. 31, 2017 |
Oct. 31, 2016 |
Jan. 31, 2019 |
Aug. 01, 2017 |
|
| Cash, FDIC Insured Amount | $ 250,000 | $ 250,000 | |||||
| Deferred Offering Costs | $ 13,300,000 | $ 13,300,000 | |||||
| Preferred stock, outstanding (in shares) | 21,815,963 | 21,118,267 | 2,342,264 | 2,342,264 | 2,450,980 | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | 21,815,963 | 21,118,267 | 770,171 | ||||
| Deferred Tax Assets, Operating Loss Carryforwards, State and Local | $ 300,000 | $ 3,200,000 | |||||
| Common Class A [Member] | |||||||
| Preferred stock, outstanding (in shares) | 21,815,963 | 21,118,267 | |||||
| Over-Allotment Option [Member] | |||||||
| Deferred Offering Costs | $ 8,050,000 | $ 8,050,000 | |||||
| Over-Allotment Option [Member] | Common Class A [Member] | |||||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | 34,100,000 | ||||||
| X | ||||||||||
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation. No definition available.
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| X | ||||||||||
- Definition Specific incremental costs directly attributable to a proposed or actual offering of securities which are deferred at the end of the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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