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Share-Based Compensation: (Tables) | 12 Months Ended
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Sep. 30, 2015
1998 Plan |
Share-based compensation |
Summary of option activity |
|  |  |  | Weighted |  |  |
|  |  |  | Average |  | Aggregate |
|  |  |  | Exercise |  | Intrinsic |
|  | Options |  | Price |  | Value |
Outstanding at September 30, 2012 |  | 376,200 |  | $ | 8.62 |  | $ | — |
Granted |  | — |  | — |  | — |
Exercised |  | (226,800 | ) | 4.63 |  | 174,112 |
Cancelled |  | (4,900 | ) | 11.42 |  | — |
Outstanding at September 30, 2013 |  | 144,500 |  | $ | 12.79 |  | $ | — |
Granted |  | — |  | — |  | — |
Exercised |  | (12,000 | ) | 7.40 |  | 8,604 |
Cancelled |  | (70,500 | ) | 16.25 |  | — |
Outstanding at September 30, 2014 |  | 62,000 |  | $ | 9.91 |  | $ | — |
Granted |  | — |  | — |  | — |
Exercised |  | — |  | — |  | — |
Cancelled |  | (9,000 | ) | 16.25 |  | — |
Outstanding at September 30, 2015 |  | 53,000 |  | $ | 8.83 |  | $ | — |
Vested |  | 53,000 |  | $ | 8.83 |  | $ | — |
Options exercisable at September 30, 2015 |  | 53,000 |  | $ | 8.83 |  | $ | — |
Summary of information about stock options |
|  | Options Outstanding |  | Options Exercisable |
Range of Exercise Prices |  | Outstanding As of September 30, 2015 |  | Weighted- Average Remaining Contractual Life |  | Weighted- Average Exercise Price |  | As of September 30, 2015 |  | Weighted- Average Exercise Price |
$ 0.00 | - | $ 5.00 |  | — |  | — |  | $ | — |  | — |  | $ | — |
$ 5.01 | - | $ 10.00 |  | 30,000 |  | 2.396 |  | 6.270 |  | 30,000 |  | 6.270 |
$ 10.01 | - | $ 15.00 |  | 23,000 |  | 0.333 |  | 12.166 |  | 23,000 |  | 12.166 |
|  | 53,000 |  | 1.501 |  | $ | 8.83 |  | 53,000 |  | $ | 8.83 |
2009 Plan |
Share-based compensation |
Summary of option activity |
|  |  |  | Weighted |  |  |
|  |  |  | Average |  | Aggregate |
|  |  |  | Exercise |  | Intrinsic |
|  | Options |  | Price |  | Value |
Outstanding at September 30, 2012 |  | 460,000 |  | $ | 4.45 |  | $ | — |
Granted |  | 250,000 |  | 4.06 |  | — |
Exercised |  | (27,999 | ) | 3.78 |  | 118,802 |
Cancelled |  | (1,667 | ) | 3.78 |  | — |
Outstanding at September 30, 2013 |  | 680,334 |  | $ | 3.32 |  | $ | — |
Granted |  | — |  | — |  | — |
Exercised |  | (44,666 | ) | 3.78 |  | 178,823 |
Cancelled |  | (10,500 | ) | 3.78 |  | — |
Outstanding at September 30, 2014 |  | 625,168 |  | $ | 3.28 |  | $ | 3,153,696 |
Granted |  | — |  | — |  | — |
Exercised |  | (20,000 | ) |  | 1.95 |  | 15,200 |
Cancelled |  | (13,000 | ) |  | 2.37 |  | — |
Outstanding at September 30, 2015 |  | 592,168 |  | $ | 3.35 |  | $ | — |
Vested and expected to vest |  | 592,168 |  | $ | 3.35 |  | $ | — |
Options exercisable at September 30, 2015 |  | 508,834 |  | $ | 3.23 |  | $ | — |
Summary of information about stock options |
Options Outstanding |  | Options Exercisable |
Range of Exercise Prices |  | Outstanding As of September 30, 2015 |  | Weighted- Average Remaining Contractual Life |  | Weighted- Average Exercise Price |  | As of September 30, 2015 |  | Weighted- Average Exercise Price |
$ 0.00 - $ 5.00 |  | 592,168 |  | 6.7 |  | $ | 3.35 |  | 508,834 |  | $ | 3.23 |
Schedule of fair value assumptions used to record compensation expense |
|  | Fiscal Year Ended September 30, |
|  | 2015 (1) |  | 2014 (1) |  | 2013 |
Expected dividend rate |  | — |  | — |  | — |
Expected volatility |  | — | % | — | % | 64.6 | %
Weighted average risk-free interest rate |  | — | % | — | % | 1.0 | %
Expected lives (years) |  | — |  | — |  | 7.6 |
(1) The Company did not grant any options in fiscal 2015 and fiscal 2014.

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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