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Stock-Based Compensation Plans (Tables) | 12 Months Ended
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Sep. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock Compensation Expense |
|  | Years Ended September 30
|  | 2015 |  | 2014 |  | 2013
Stock option grants |  | $ | 267 |  |  |  | 441 |  |  |  | 376 |
Annual non-employee Director stock award |  |  | 536 |  |  |  | 698 |  |  |  | 507 |
|  | $ | 803 |  |  |  | 1,139 |  |  |  | 883 |
Summary of Stock Activity |
|  |  | Weighted |  | Weighted |  | Weighted
| Number |  | Average |  | Average |  | Average
| of |  | Exercise |  | Remaining |  | Grant Date
Options | Shares |  | Price |  | Term (yrs) |  | Fair Value(000's)
Outstanding at |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
October 1, 2012 |  | 481,210 |  |  | $ | 17.52 |  |  |  | 3.8 |  |  | $ | 3,782 |
Granted |  | 46,180 |  |  | $ | 26.20 |  |  |  |  |  |  | $ | 489 |
Exercised |  | (112,800 | ) |  | $ | 10.52 |  |  |  |  |  |  | $ | (603 | )
Outstanding at |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
September 30, 2013 |  | 414,590 |  |  | $ | 20.40 |  |  |  | 4.2 |  |  | $ | 3,668 |
Granted |  | 31,790 |  |  | $ | 41.39 |  |  |  |  |  |  | $ | 545 |
Exercised |  | (119,550 | ) |  | $ | 12.23 |  |  |  |  |  |  | $ | (732 | )
Outstanding at |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
September 30, 2014 |  | 326,830 |  |  | $ | 25.43 |  |  |  | 5.0 |  |  | $ | 3,481 |
Spin-off adjustment |  |  |  |  |  |  |  |  |  |  |  |  | $ | (865 | )
Spin-off conversion |  | 17,795 |  |  | $ | 20.63 |  |  |  |  |  |  | $ | 155 |
Granted |  | 39,425 |  |  | $ | 26.97 |  |  |  |  |  |  | $ | 432 |
Forfeited |  | (6,000 | ) |  | $ | 14.97 |  |  |  |  |  |  | $ | (35 | )
Exercised |  | (72,300 | ) |  | $ | 13.31 |  |  |  |  |  |  | $ | (430 | )
Outstanding at |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
September 30, 2015 |  | 305,750 |  |  | $ | 21.90 |  |  |  | 5.9 |  |  | $ | 2,738 |
Exercisable at |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
September 30, 2015 |  | 213,847 |  |  | $ | 20.87 |  |  |  | 5.0 |  |  | $ | 1,751 |
Vested during |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
twelve months ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
September 30, 2015 |  | 37,546 |  |  |  |  |  |  |  |  |  |  | $ | 329 |
Summary of Stock Options Outstanding |
|  |  |  | Shares |  |  | Weighted |  |  | Weighted |
Range of Exercise |  |  |  | under |  |  | Average |  |  | Average |
Prices per Share |  |  |  | Option |  |  | Exercise Price |  | Remaining Life
Non-exercisable: |  |  |  |  |  |  |  |  |  |  |  |  |  |
$16.51 – $24.75 |  |  |  | 11,078 |  |  |  |  | 16.72 |  |  |  | 6.2 |
$24.76 - $37.25 |  |  |  | 59,977 |  |  |  |  | 23.30 |  |  |  | 8.0 |
$37.26 - $41.39 |  |  |  | 20,848 |  |  |  |  | 31.10 |  |  |  | 8.2 |
|  |  |  | 91,903 |  |  |  | $ | 24.27 |  |  |  | 7.8 | Years
Exercisable: |  |  |  |  |  |  |  |  |  |  |  |  |  |
$16.51 - $24.75 |  |  |  | 54,117 |  |  |  |  | 17.63 |  |  |  | 4.8 |
$24.76 - $37.25 |  |  |  | 147,018 |  |  |  |  | 21.18 |  |  |  | 4.8 |
$37.26 - $41.39 |  |  |  | 12,712 |  |  |  |  | 31.10 |  |  |  | 8.2 |
|  |  |  | 213,847 |  |  |  | $ | 20.87 |  |  |  | 5.0 | Years
Total |  |  |  | 305,750 |  |  |  | $ | 21.90 |  |  |  | 5.9 | Years

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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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