Earnings Per Share - Additional Information (Detail) - shares |
1 Months Ended | 3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|---|
Feb. 01, 2020 |
Oct. 31, 2020 |
Sep. 30, 2019 |
Oct. 31, 2020 |
Sep. 30, 2019 |
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||||
| Anti-dilutive securities excluded from computation of earnings per share | 2,128,000 | 2,293,000 | 569,000 | 2,293,000 | 560,000 |
| In The Money Warrants [Member] | |||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||||
| Anti-dilutive securities excluded from computation of earnings per share | 312,000 | ||||
| In The Money Warrants And Preferred Shares [Member] | |||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||||
| Anti-dilutive securities excluded from computation of earnings per share | 1,003,000 | 702,000 | 3,000 | 12,000 | |