Stockholders' Equity	12 Months Ended
Sep. 30, 2018
Stockholders' Equity Attributable to Parent [Abstract]
Stockholders' Equity	Stockholders' Equity Preferred Stock We currently have no shares of preferred stock outstanding. Common Stock As of September 30, 2018, we had 63,000,000 shares of common stock authorized and 33,522,046 shares both issued and outstanding. Common Stock Repurchases During our fiscal 2018, 2017, and 2016, we did not repurchase any shares of our common stock in the open market. Any future stock repurchases, to the extent allowed by our existing debt covenants, must be approved by the Company's Board of Directors or its Finance Committee. During our fiscal 2018, 2017, and 2016, 229,191, 32,035, and 16,779 shares of our common stock, respectively, were surrendered to us by employees as payment of minimum tax obligations upon the vesting of restricted stock awards under our stock incentive plans. We valued the surrendered stock at the market price on the date of surrender for an aggregate value of approximately $3.4 million in fiscal 2018, $0.4 million in fiscal 2017, and $0.2 million in fiscal 2016. Dividends The indentures under which our Senior Notes were issued contain certain restrictive covenants, including limitations on our payment of dividends. There were no dividends paid during our fiscal 2018, 2017, or 2016. Section 382 Rights Agreement In February 2011, the Company’s stockholders approved an amendment to the Company’s Certificate of Incorporation (the Protective Amendment) designed to preserve the value of certain tax assets associated with NOL carryforwards under Section 382. In February 2013, the Company’s stockholders approved an extension of the term of the Protective Amendment and approved a Section 382 Rights Agreement that was adopted by our Board of Directors. These instruments are intended to act as deterrents to any person or group, together with their affiliates and associates, from being or becoming the beneficial owner of 4.95% or more of the Company’s common stock. In February 2016, the Company’s stockholders approved an extension of the Protective Amendment to November 12, 2019 and approved a new Section 382 Rights Agreement adopted by our Board of Directors with an expiration date of November 14, 2019.

Stockholders' Equity

Preferred Stock

We currently have no shares of preferred stock outstanding.

Common Stock

As of September 30, 2018, we had 63,000,000 shares of common stock authorized and 33,522,046 shares both issued and outstanding.

Common Stock Repurchases

During our fiscal 2018, 2017, and 2016, we did not repurchase any shares of our common stock in the open market. Any future stock repurchases, to the extent allowed by our existing debt covenants, must be approved by the Company's Board of Directors or its Finance Committee.

During our fiscal 2018, 2017, and 2016, 229,191, 32,035, and 16,779 shares of our common stock, respectively, were surrendered to us by employees as payment of minimum tax obligations upon the vesting of restricted stock awards under our stock incentive plans. We valued the surrendered stock at the market price on the date of surrender for an aggregate value of approximately $3.4 million in fiscal 2018, $0.4 million in fiscal 2017, and $0.2 million in fiscal 2016.

Dividends

The indentures under which our Senior Notes were issued contain certain restrictive covenants, including limitations on our payment of dividends. There were no dividends paid during our fiscal 2018, 2017, or 2016.

Section 382 Rights Agreement

In February 2011, the Company’s stockholders approved an amendment to the Company’s Certificate of Incorporation (the Protective Amendment) designed to preserve the value of certain tax assets associated with NOL carryforwards under Section 382. In February 2013, the Company’s stockholders approved an extension of the term of the Protective Amendment and approved a Section 382 Rights Agreement that was adopted by our Board of Directors. These instruments are intended to act as deterrents to any person or group, together with their affiliates and associates, from being or becoming the beneficial owner of 4.95% or more of the Company’s common stock. In February 2016, the Company’s stockholders approved an extension of the Protective Amendment to November 12, 2019 and approved a new Section 382 Rights Agreement adopted by our Board of Directors with an expiration date of November 14, 2019.