Note 1 - Description of Organization and Business Operations (Details Textual) - USD ($) |
1 Months Ended | 2 Months Ended | 3 Months Ended | 9 Months Ended | 11 Months Ended | 12 Months Ended | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Aug. 22, 2017 |
Aug. 01, 2017 |
Dec. 05, 2018 |
Jan. 31, 2019 |
Jan. 31, 2018 |
Dec. 31, 2017 |
Dec. 05, 2018 |
Oct. 31, 2018 |
Oct. 31, 2017 |
Oct. 31, 2016 |
Feb. 28, 2016 |
|
| Stock Issued During Period, Value, New Issues | $ 230,000,000 | $ 96,901,000 | $ 25,000 | $ 7,116,500 | |||||||
| Deferred Offering Costs | 13,300,000 | $ 13,300,000 | $ 13,300,000 | ||||||||
| Proceeds from Issuance or Sale of Equity, Total | $ 234,600,000 | ||||||||||
| Share Price | $ 10.20 | $ 10.20 | |||||||||
| Interest Expense, Total | $ 1,644,000 | $ 5,592,000 | $ 5,087,000 | $ 100,000 | $ 21,424,747 | $ 22,747,848 | $ 19,516,077 | ||||
| Common Stock, Par or Stated Value Per Share | $ 0.0001 | $ 0.001 | $ 0.001 | $ 0.001 | |||||||
| Common Class A [Member] | |||||||||||
| Common Stock, Par or Stated Value Per Share | $ 0.0001 | $ 0.0001 | $ 0.0001 | ||||||||
| IPO [Member] | |||||||||||
| Stock Issued During Period, Shares, New Issues | 23,000,000 | ||||||||||
| Sale of Stock, Price Per Share | $ 11.50 | ||||||||||
| Over-Allotment Option [Member] | |||||||||||
| Stock Issued During Period, Shares, New Issues | 3,000,000 | ||||||||||
| Sale of Stock, Price Per Share | $ 10 | ||||||||||
| Deferred Offering Costs | $ 8,050,000 | $ 8,050,000 | $ 8,050,000 | ||||||||
| Private Placement [Member] | |||||||||||
| Sale of Stock, Price Per Share | $ 1 | ||||||||||
| Number of Warrants Issued | 55,500 | 11,100,000 | |||||||||
| Proceeds from Issuance of Warrants | $ 277,500 | $ 11,100,000 | |||||||||
| Aggregate Number of Warrants Issued | 277,500 | ||||||||||
| X | ||||||||||
- Definition The total number of warrants issued during the period. No definition available.
|
| X | ||||||||||
- Definition The total number of warrants issued during the period. No definition available.
|
| X | ||||||||||
- Definition Face amount or stated value per share of common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| 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
|
| X | ||||||||||
- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. No definition available.
|
| X | ||||||||||
- Definition Price of a single share of a number of saleable stocks of a company. No definition available.
|
| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|