Six Months Ended | |||||||||
March 31, | |||||||||
2019 | 2018 | Change | |||||||
Net income (loss) | $ | 2,955 | $ | (1,535) | $ | 4,490 | |||
Write-down of deferred tax assets | $ | — | $ | 3,365 | $ | (3,365) | |||
Pro-forma impact of tax rate change | $ | — | $ | 166 | $ | (166) | |||
Net income, adjusted for the effect of the 2017 Tax Act | $ | 2,955 | $ | 1,966 | $ | 959 | |||
Net income per diluted share | $ | 0.23 | $ | (0.13) | $ | 0.36 | |||
Impact of write-down of deferred tax asset | $ | — | $ | 0.28 | $ | (0.28) | |||
Pro-forma impact of tax rate change | $ | — | $ | 0.01 | $ | (0.01) | |||
Net income per diluted share, adjusted for the effect of the 2017 Tax Act | $ | 0.23 | $ | 0.16 | $ | 0.07 |