Note 16 - Earnings Per Share (Details Textual) - $ / shares shares in Millions |
3 Months Ended | 15 Months Ended | ||
|---|---|---|---|---|
Jan. 31, 2022 |
Jan. 31, 2021 |
Jan. 31, 2022 |
Dec. 06, 2018 |
|
| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ 11.50 | $ 11.50 | $ 11.50 | |
| Warrant [Member] | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 13.0 | 13.0 | ||
| Restricted Stock [Member] | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 2.9 | |||
| Vested Stock Options [Member] | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 1.2 | |||
| Vested Non-qualified Stock Options [Member] | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 0.4 | |||
| Series A Preferred Stocks [Member] | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 2.5 | |||