Stock-Based Compensation	6 Months Ended
Mar. 31, 2020
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation	Stock-Based Compensation The Company has awarded performance and restricted shares under its shareholder-approved amended and restated 2007 Long-Term Incentive Plan ("2007 Plan"), which was further amended and restated under the SIFCO Industries, Inc. 2007 Long-Term Incentive Plan (Amended and Restated as of November 16, 2016) (the "2016 Plan"). At the Annual Meeting of shareholders held on January 30, 2020, the shareholders of the Company approved the first amendment (the “Amendment”) to the 2016 Plan. The Amendment increased the number of shares available for award under the 2016 Plan by 550 shares. The aggregate number of shares that may be awarded by the Company was increased to 1,196 shares, less any shares previously awarded and subject to an adjustment for the forfeiture of any unvested shares, pursuant to the 2016 Plan. In addition, shares that may be awarded are subject to individual recipient award limitations. The shares awarded under the 2016 Plan may be made in multiple forms, including stock options, stock appreciation rights, restricted or unrestricted stock, and performance related shares. Any such award is exercisable no later than ten years from the date of the grant. The performance shares that have been awarded under both plans generally provide for the vesting of the Company’s common shares upon the Company achieving certain defined financial performance objectives during a period up to three years following the making of such award. The ultimate number of common shares of the Company that may be earned pursuant to an award ranges from a minimum of no shares to a maximum of 200% (for awards granted in fiscal 2020, the maximum is 150%) of the initial target number of performance shares awarded, depending on the level of the Company’s achievement of its financial performance objectives. With respect to such performance shares, compensation expense is being accrued based on the probability of meeting the performance target. The Company is currently recognizing compensation expense for two tranches of awards where it has concluded it is probable that the performance criteria for that award will be met, while the Company is not currently recognizing compensation expense for one tranche of awards where it had concluded that it is not probable that the performance criteria for those awards will be met. During each future reporting period, such expense may be subject to adjustment based upon the Company's financial performance, which impacts the number of common shares that it expects to vest upon the completion of the performance period. The performance shares were valued at the closing market price of the Company’s common shares on the date of the grant. The vesting of such shares is determined at the end of the performance period. During the first six months of fiscal 2020, the Company granted 134 shares under the 2016 Plan to certain key employees. The awards were split into two tranches, 47 performance shares and 87 shares of time-based restricted shares, with a grant date fair value of $2.50 per share. The awards vest over three years. The Company has awarded restricted shares to its directors, officers, and other employees of the Company. The restricted shares were valued at the closing market price of the Company’s common shares on the date of the grant, and such value was recorded as unearned compensation. The unearned compensation is being amortized ratably over the restricted stock vesting period of one year or three years. During the first six months of fiscal 2020, the Company granted its non-employee directors 57 restricted shares under the 2016 Plan, with a grant date fair value of $4.39, which vests over one year. One award for 61 restricted shares vested. If all outstanding share awards are ultimately earned and vest at the target number of shares, there are approximately 524 shares that remain available for award at March 31, 2020. If any of the outstanding share awards are ultimately earned and vest at greater than the target number of shares, up to a maximum of 200% (decreased to 150% for awards starting in fiscal 2020) of such target, then a fewer number of shares would be available for award. Stock-based compensation under the 2016 Plan was $225 and $426 during the first six months of fiscal 2020 and 2019, respectively and $70 and $190 during the three months of fiscal 2020 and 2019, respectively. As of March 31, 2020, there was $732 of total unrecognized compensation cost related to the performance shares and restricted shares awarded under the 2016 Plan. The Company expects to recognize this cost over the next 1.6 years.

Stock-Based Compensation

The Company has awarded performance and restricted shares under its shareholder-approved amended and restated 2007 Long-Term Incentive Plan ("2007 Plan"), which was further amended and restated under the SIFCO Industries, Inc. 2007 Long-Term Incentive Plan (Amended and Restated as of November 16, 2016) (the "2016 Plan"). At the Annual Meeting of shareholders held on January 30, 2020, the shareholders of the Company approved the first amendment (the “Amendment”) to the 2016 Plan. The Amendment increased the number of shares available for award under the 2016 Plan by 550 shares. The aggregate number of shares that may be awarded by the Company was increased to 1,196 shares, less any shares previously awarded and subject to an adjustment for the forfeiture of any unvested shares, pursuant to the 2016 Plan. In addition, shares that may be awarded are subject to individual recipient award limitations. The shares awarded under the 2016 Plan may be made in multiple forms, including stock options, stock appreciation rights, restricted or unrestricted stock, and performance related shares. Any such award is exercisable no later than ten years from the date of the grant.

The performance shares that have been awarded under both plans generally provide for the vesting of the Company’s common shares upon the Company achieving certain defined financial performance objectives during a period up to three years following the making of such award. The ultimate number of common shares of the Company that may be earned pursuant to an award ranges from a minimum of no shares to a maximum of 200% (for awards granted in fiscal 2020, the maximum is 150%) of the initial target number of performance shares awarded, depending on the level of the Company’s achievement of its financial performance objectives.

With respect to such performance shares, compensation expense is being accrued based on the probability of meeting the performance target. The Company is currently recognizing compensation expense for two tranches of awards where it has concluded it is probable that the performance criteria for that award will be met, while the Company is not currently recognizing compensation expense for one tranche of awards where it had concluded that it is not probable that the performance criteria for those awards will be met. During each future reporting period, such expense may be subject to adjustment based upon the Company's financial performance, which impacts the number of common shares that it expects to vest upon the completion of the performance period. The performance shares were valued at the closing market price of the Company’s common shares on the date of the grant. The vesting of such shares is determined at the end of the performance period.

During the first six months of fiscal 2020, the Company granted 134 shares under the 2016 Plan to certain key employees. The awards were split into two tranches, 47 performance shares and 87 shares of time-based restricted shares, with a grant date fair value of $2.50 per share. The awards vest over three years.

The Company has awarded restricted shares to its directors, officers, and other employees of the Company. The restricted shares were valued at the closing market price of the Company’s common shares on the date of the grant, and such value was recorded as unearned compensation. The unearned compensation is being amortized ratably over the restricted stock vesting period of one year or three years.

During the first six months of fiscal 2020, the Company granted its non-employee directors 57 restricted shares under the 2016 Plan, with a grant date fair value of $4.39, which vests over one year. One award for 61 restricted shares vested.

If all outstanding share awards are ultimately earned and vest at the target number of shares, there are approximately 524 shares that remain available for award at March 31, 2020. If any of the outstanding share awards are ultimately earned and vest at greater than the target number of shares, up to a maximum of 200% (decreased to 150% for awards starting in fiscal 2020) of such target, then a fewer number of shares would be available for award.

Stock-based compensation under the 2016 Plan was $225 and $426 during the first six months of fiscal 2020 and 2019, respectively and $70 and $190 during the three months of fiscal 2020 and 2019, respectively. As of March 31, 2020, there was $732 of total unrecognized compensation cost related to the performance shares and restricted shares awarded under the 2016 Plan. The Company expects to recognize this cost over the next 1.6 years.