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Stockholders' Equity (Tables) | 12 Months Ended
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Sep. 30, 2017
Stockholders Equity Note [Abstract] |
Summary of Combined Activity Under Equity Incentive Plans | The following table summarizes the combined activity under the equity incentive plans for the indicated periods:
|  | Number of Nonqualified Options Outstanding |  |  | Weighted Average Exercise Price per Share |  |  | Number of Restricted Stock Awards |  |  | Weighted Average Grant-date Fair Value per Share |
Outstanding at October 1, 2014 |  |  | 89,700 |  |  | $ | 17.27 |  |  |  | 189,000 |  |  | $ | 95.03 |
Granted |  |  | — |  |  |  | — |  |  |  | 3,000 |  |  |  | 19.13 |
Exercised |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Forfeited |  |  | — |  |  |  | — |  |  |  | (2,500 | ) |  |  | 98.68 |
Vested |  |  | — |  |  |  | — |  |  |  | (47,000 | ) |  |  | 95.02 |
Outstanding at September 30, 2015 |  |  | 89,700 |  |  |  | 17.27 |  |  |  | 142,500 |  |  |  | 93.80 |
Granted |  |  | 69,300 |  |  |  | 14.87 |  |  |  | 182,400 |  |  |  | 14.84 |
Exercised |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Forfeited |  |  | — |  |  |  | — |  |  |  | (2,250 | ) |  |  | 77.33 |
Vested |  |  | — |  |  |  | — |  |  |  | (49,000 | ) |  |  | 90.73 |
Outstanding at September 30, 2016 |  |  | 159,000 |  |  |  | 16.23 |  |  |  | 273,650 |  |  |  | 39.98 |
Granted |  |  | 51,300 |  |  |  | 21.42 |  |  |  | 109,500 |  |  |  | 21.12 |
Exercised |  |  | (4,000 | ) |  |  | 8.78 |  |  |  | — |  |  |  | — |
Forfeited |  |  | (4,500 | ) |  |  | 26.48 |  |  |  | (3,250 | ) |  |  | 28.73 |
Vested |  |  | — |  |  |  | — |  |  |  | (91,100 | ) |  |  | 22.02 |
Outstanding at September 30, 2017 |  |  | 201,800 |  |  | $ | 17.47 |  |  |  | 288,800 |  |  | $ | 28.92 |
Summary of Stock Options Outstanding and Exercisable | The following table summarizes information about stock options outstanding and exercisable at September 30, 2017:
|  | Options Outstanding |  |  | Options Exercisable |
Range of Exercise Prices |  | Shares |  |  | Weighted Average Remaining Term (in years) |  |  | Weighted Average Exercise Price |  |  | Intrinsic Value |  |  | Shares |  |  | Weighted Average Remaining Term (in years) |  |  | Weighted Average Exercise Price |  |  | Intrinsic Value |
$8.78 to $8.78 |  |  | 34,200 |  |  |  | 1.2 |  |  | $ | 8.78 |  |  | $ | 309,168 |  |  |  | 34,200 |  |  |  | 1.2 |  |  | $ | 8.78 |  |  | $ | 309,168 |
$14.87 to $14.87 |  |  | 69,300 |  |  |  | 8.1 |  |  |  | 14.87 |  |  |  | 204,435 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
$21.42 to $26.48 |  |  | 98,300 |  |  |  | 6.0 |  |  |  | 22.32 |  |  |  | — |  |  |  | 47,000 |  |  |  | 2.5 |  |  |  | 23.30 |  |  |  | — |
|  |  | 201,800 |  |  |  | 5.9 |  |  | $ | 17.47 |  |  | $ | 513,603 |  |  |  | 81,200 |  |  |  | 3.3 |  |  | $ | 17.18 |  |  | $ | 309,168 |

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- Definition Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value. + References No definition available. + Details
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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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