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Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 09, 2015 | Feb. 04, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Common stock, shares authorized |  |  | 100,000,000 | 100,000,000 |  |  |
Common stock, shares outstanding |  |  | 21,475,741 | 21,767,700 |  |  |
Rights Offering [Abstract] |  |  |  |  |  |  |
Rights Offering Date |  |  | Aug. 07, 2014 |  |  |  |
Rights Offering Description |  |  | On August 7, 2014, we completed a $20,000 rights offering (the “Rights Offering”). In the Rights Offering, the Company distributed, at no charge, to the holders of shares of its common stock on July 7, 2014, one non-transferable subscription right for each share of common stock owned. Each right entitled the holder thereof to purchase from the Company 0.214578135 shares of common stock at a subscription price of $5.20 per share, which represented a discount to the market price of the common stock at the closing of the offering. In addition, holders who purchased all of the shares of common stock available to them were entitled to subscribe, at the same subscription price of $5.20 per share, for a portion of any shares of common stock that other holders did not purchase, subject to certain limitations (the “Over-Subscription Privilege”). The Rights Offering was fully subscribed, after giving effect to the exercise of Over-Subscription Privileges, and we received net proceeds of approximately $19,649, after deducting estimated offering expenses, for the issuance of 3,846,150 shares of common stock. |  |  |  |
Proceeds From Issuance Of Common Stock From RIghts Offering |  |  |  | $ 20,000 |  |  |
Proceeds From Issuance O fCommon Stock Net Of Issuance Costs |  |  |  | 19,649 |  |  |
Shares Available To Purchase Per Right |  |  | 0.214578135 |  |  |  |
Shares Issued Price Per Share From Rights Offering |  |  | $ 5.2 |  |  |  |
Common Stock Shares Issued From Rights Offering |  |  | 3,846,150 |  |  |  |
Common Stock Shares Outstanding From Rights Offering |  |  | 21,768,642 |  |  |  |
Controlling Shareholder Ownership Percentage Before Rights Offering |  |  | 60.00% |  |  |  |
Controlling Shareholder Ownership Percentage After Rights Offering |  |  | 61.00% |  |  |  |
Equity Class Of Treasury Stock [Line Items] |  |  |  |  |  |  |
Treasury Stock Value Acquired Cost Method |  |  | $ 3,622 | $ 179 |  |  |
The 2006 Equity Incentive Plan [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Common stock, shares authorized |  |  | 2,000,000 |  |  |  |
Common shares repurchased for tax withholding |  |  | 17,677 | 36,272 |  |  |
Shares issued under share based compensation program |  |  | 199,565 | 13,500 |  |  |
Available Common Stock Authorized Shares |  |  | 472,054 |  |  |  |
The 2006 Equity Incentive Plan [Member] | Scenario Forecast [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Common stock, shares authorized |  |  |  |  |  | 1,000,000 |
The2015StockRepurchaseProgram [Member] |  |  |  |  |  |  |
Equity Class Of Treasury Stock [Line Items] |  |  |  |  |  |  |
Approved Number of shares to be repurchased |  |  |  |  |  |  | 1,000,000
Treasury Stock Shares Acquired |  |  | 482,156 |  |  |  |
Treasury Stock Value Acquired Cost Method |  |  | $ 3,500 |  |  |  |
Average Share Price |  |  | $ 7.22 |  |  |  |
The2015StockRepurchaseProgram [Member] | Scenario Forecast [Member] |  |  |  |  |  |  |
Equity Class Of Treasury Stock [Line Items] |  |  |  |  |  |  |
Approved Number of shares to be repurchased |  |  |  |  |  | 500,000 |
Phantom Share Units PSU's - Employee | The 2006 Equity Incentive Plan [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Recognized compensation expense |  |  | $ 0 | $ 0 | $ 651 |  |
Phantom Share Units PSU's - BOD [Member] | The 2006 Equity Incentive Plan [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares issued under share based compensation program |  |  | 8,309 |  |  |  |
Recognized compensation expense |  |  | $ 224 | 243 | 295 |  |
Restricted Stock [Member] | The 2006 Equity Incentive Plan [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Recognized compensation expense |  |  | 290 | 201 | 374 |  |
Unamortized compensation cost |  |  | 1,284 |  |  |  |
Fair Value of Restricted Stock Vesting |  |  | $ 353 | 571 | 528 |  |
Weighted Avg Grant Date Fair Value of Unvested Restricted Stock |  |  | $ 8.31 |  |  |  |
Restricted Stock [Member] | The 2006 Equity Incentive Plan [Member] | Scenario Forecast [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Compensation expense to be recognized | $ 505 | $ 522 |  |  |  |  |
Stock Option [Member] | The 2006 Equity Incentive Plan [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Recognized compensation expense |  |  | $ (45) | 267 | $ 110 |  |
Unamortized compensation cost |  |  | 83 |  |  |  |
Intrinsic Value |  |  | $ 88 | $ 57 |  |  |
Stock Option [Member] | The 2006 Equity Incentive Plan [Member] | Scenario Forecast [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Compensation expense to be recognized | $ 18 | $ 65 |  |  |  |  |

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