| Period | Value | YoY Chg | Change % | Date | Report | Filed |
|---|---|---|---|---|---|---|
| Q3 2022 | -$46.6M | -$1.62M | -3.6% | Oct 31, 2022 | 10-Q | 2023-01-11 |
| Q2 2022 | -$46.4M | -$2.57M | -5.87% | Jul 31, 2022 | 10-Q | 2022-09-19 |
| Q1 2022 | -$46.3M | -$2.91M | -6.71% | Apr 30, 2022 | 10-Q | 2023-01-11 |
| Q4 2021 | -$45.9M | -$3.68M | -8.71% | Jan 31, 2022 | 10-Q | 2022-04-22 |
| Q3 2021 | -$45M | -$3.8M | -9.23% | Oct 31, 2021 | 10-Q | 2023-01-11 |
| Q2 2021 | -$43.8M | -$3.04M | -7.45% | Jul 31, 2021 | 10-Q | 2023-01-11 |
| Q1 2021 | -$43.4M | -$3.24M | -8.07% | Apr 30, 2021 | 10-Q | 2023-01-11 |
| Q4 2020 | -$42.3M | -$2.39M | -5.99% | Jan 31, 2021 | 10-Q | 2022-04-22 |
| Q3 2020 | -$41.2M | -$2.49M | -6.43% | Oct 31, 2020 | 10-Q | 2022-04-22 |
| Q2 2020 | -$40.8M | -$1.66M | -4.25% | Jul 31, 2020 | 10-Q | 2021-12-17 |
| Q1 2020 | -$40.1M | -$1.38M | -3.57% | Apr 30, 2020 | 10-K | 2022-08-10 |
| Q4 2019 | -$39.9M | -$2.73M | -7.36% | Jan 31, 2020 | 10-Q | 2020-03-16 |
| Q3 2019 | -$38.7M | -$2.57M | -7.12% | Oct 31, 2019 | 10-Q | 2019-12-16 |
| Q2 2019 | -$39.1M | -$4.1M | -11.7% | Jul 31, 2019 | 10-Q | 2019-09-16 |
| Q1 2019 | -$38.7M | -$4.91M | -14.5% | Apr 30, 2019 | 10-K | 2020-08-03 |
| Q4 2018 | -$37.1M | -$4.21M | -12.8% | Jan 31, 2019 | 10-Q | 2019-03-18 |
| Q3 2018 | -$36.1M | -$3.97M | -12.4% | Oct 31, 2018 | 10-Q | 2018-12-17 |
| Q2 2018 | -$35M | -$4.8M | -15.9% | Jul 31, 2018 | 10-Q | 2018-09-14 |
| Q1 2018 | -$33.8M | -$4.71M | -16.2% | Apr 30, 2018 | 10-K | 2019-08-13 |
| Q4 2017 | -$32.9M | -$5.07M | -18.2% | Jan 31, 2018 | 10-Q | 2018-03-16 |
| Q3 2017 | -$32.2M | -$5.19M | -19.3% | Oct 31, 2017 | 10-Q | 2017-12-15 |
| Q2 2017 | -$30.2M | -$4.17M | -16% | Jul 31, 2017 | 10-Q | 2017-09-14 |
| Q1 2017 | -$29.1M | -$3.9M | -15.5% | Apr 30, 2017 | 10-K | 2018-07-30 |
| Q4 2016 | -$27.9M | -$4.71M | -20.3% | Jan 31, 2017 | 10-Q | 2017-03-17 |
| Q3 2016 | -$27M | -$5.9M | -28% | Oct 31, 2016 | 10-Q | 2017-01-20 |
| Q2 2016 | -$26M | -$5.4M | -26.1% | Jul 31, 2016 | 10-Q | 2016-09-13 |
| Q1 2016 | -$25.2M | -$4.8M | -23.5% | Apr 30, 2016 | 10-K | 2017-07-31 |
| Q4 2015 | -$23.2M | -$6.17M | -36.3% | Jan 31, 2016 | 10-Q | 2016-03-15 |
| Q3 2015 | -$21.1M | -$4.38M | -26.3% | Oct 31, 2015 | 10-Q | 2015-12-29 |
| Q2 2015 | -$20.7M | -$4.25M | -25.9% | Jul 31, 2015 | 10-Q | 2015-09-14 |
| Q1 2015 | -$20.4M | -$4.52M | -28.4% | Apr 30, 2015 | 10-K | 2016-07-29 |
| Q4 2014 | -$17M | -$2.45M | -16.8% | Jan 31, 2015 | 10-Q | 2015-03-17 |
| Q3 2014 | -$16.7M | -$2.3M | -16% | Oct 31, 2014 | 10-Q | 2014-12-22 |
| Q2 2014 | -$16.4M | -$2.98M | -22.2% | Jul 31, 2014 | 10-Q | 2014-09-15 |
| Q1 2014 | -$15.9M | -$3.07M | -23.9% | Apr 30, 2014 | 10-K | 2015-08-06 |
| Q4 2013 | -$14.5M | -$2.66M | -22.3% | Jan 31, 2014 | 10-Q | 2014-03-24 |
| Q3 2013 | -$14.4M | -$3.32M | -30% | Oct 31, 2013 | 10-Q | 2013-12-16 |
| Q2 2013 | -$13.4M | -$3.72M | -38.4% | Jul 31, 2013 | 10-Q | 2013-09-12 |
| Q1 2013 | -$12.8M | -$4.01M | -45.5% | Apr 30, 2013 | 10-K/A | 2014-07-30 |
| Q4 2012 | -$11.9M | -$3.74M | -45.9% | Jan 31, 2013 | 10-Q | 2013-03-25 |
| Q3 2012 | -$11.1M | -$4.18M | -60.7% | Oct 31, 2012 | 10-Q | 2012-12-14 |
| Q2 2012 | -$9.7M | -$4.23M | -77.5% | Jul 31, 2012 | 10-Q | 2012-09-12 |
| Q1 2012 | -$8.82M | -$4.34M | -97% | Apr 30, 2012 | 10-K | 2013-08-02 |
| Q4 2011 | -$8.14M | Jan 31, 2012 | 10-Q | 2012-03-19 | ||
| Q3 2011 | -$6.88M | Oct 31, 2011 | 10-Q | 2011-12-15 | ||
| Q2 2011 | -$5.46M | Jul 31, 2011 | 10-Q | 2011-09-14 | ||
| Q1 2011 | -$4.48M | Apr 30, 2011 | 10-K | 2012-07-30 |