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Stock-Based Compensation (Tables) | 12 Months Ended
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Sep. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Stock-Based Compensation Expense | Stock-based compensation expense is included in the consolidated results of operations as follows (in thousands):
| Fiscal years ended September 30,
| 2015 |  | 2014 |  | 2013
Cost of sales | $ | 356 |  |  | $ | 345 |  |  | $ | 183 |
Sales and marketing | 1,197 |  |  | 1,179 |  |  | 1,261 |
Research and development | 785 |  |  | 735 |  |  | 772 |
General and administrative | 1,963 |  |  | 2,071 |  |  | 1,556 |
Stock-based compensation before income taxes | 4,301 |  |  | 4,330 |  |  | 3,772 |
Income tax benefit | (1,493 | ) |  | (1,491 | ) |  | (1,192 | )
Stock-based compensation after income taxes | $ | 2,808 |  |  | $ | 2,839 |  |  | $ | 2,580 |
Schedule of Stock Option Activity | The following table summarizes our stock option activity (in thousands, except per common share amounts):
|  | Options Outstanding |  | Weighted Average Exercised Price |  | Weighted Average Contractual Term (in years) |  | Aggregate Intrinsic Value (1)
Balance at September 30, 2014 |  | 6,029 |  |  | $10.61 |  |  |  |
Granted |  | 810 |  |  | 8.12 |  |  |  |
Exercised |  | (739 | ) |  | 8.87 |  |  |  |
Forfeited / Canceled |  | (1,300 | ) |  | 11.55 |  |  |  |
Balance at September 30, 2015 |  | 4,800 |  |  | $10.21 |  | 4.8 |  | $ | 9,163 |
Exercisable at September 30, 2015 |  | 3,540 |  |  | $10.66 |  | 4.1 |  | $ | 5,575 |
(1) The aggregate intrinsic value represents the total pre-tax intrinsic value, based on our closing stock price of $11.79 as of September 30, 2015, which would have been received by the option holders had all option holders exercised their options as of that date.
Schedule of Valuation Assumptions | The table below shows the weighted average fair value, which was determined based upon the fair value of each option on the grant date utilizing the Black-Scholes option-pricing model and the related assumptions:
| Fiscal years ended September 30,
| 2015 |  | 2014 |  | 2013
Weighted average per option grant date fair value | $ | 2.98 |  |  | $ | 4.35 |  |  | $ | 3.77 |
Assumptions used for option grants: |  |  |  |  |
Risk free interest rate | 1.57% - 1.85% |  | 1.76% - 2.02% |  | 0.88% - 1.78%
Expected term | 6.00 years |  | 6.00 years |  | 6.25 years
Expected volatility | 32% - 36% |  | 38% - 40% |  | 40%
Weighted average volatility | 35% |  | 40% |  | 40%
Expected dividend yield | 0 |  | 0 |  | 0
Schedule of Weighted Average Exercise Price Range and Remaining Contractual Life | At September 30, 2015, the weighted average exercise price and remaining life of the stock options are as follows (in thousands, except remaining life and exercise price):
Options Outstanding |  | Options Exercisable
Range of Exercise Prices |  | Options Outstanding |  | Weighted Average Remaining Contractual Life (In Years) |  | Weighted Average Exercise Price |  | Number of Shares Vested |  | Weighted Average Exercise Price
$7.40 - $8.03 |  | 777 |  |  | 5.32 |  | $ | 7.74 |  |  | 439 |  |  | $ | 8.01 |
$8.04 - $9.35 |  | 1,006 |  |  | 6.10 |  | $ | 8.79 |  |  | 521 |  |  | $ | 8.98 |
$9.36 - $9.95 |  | 751 |  |  | 4.94 |  | $ | 9.69 |  |  | 709 |  |  | $ | 9.69 |
$9.96 - $10.81 |  | 1,119 |  |  | 6.05 |  | $ | 10.66 |  |  | 724 |  |  | $ | 10.68 |
$10.82 - $13.41 |  | 883 |  |  | 2.00 |  | $ | 12.41 |  |  | 883 |  |  | $ | 12.41 |
$13.42 - $14.75 |  | 27 |  |  | 3.22 |  | $ | 14.35 |  |  | 27 |  |  | $ | 14.35 |
$14.76 - $15.23 |  | 237 |  |  | 2.05 |  | $ | 15.23 |  |  | 237 |  |  | $ | 15.23 |
$7.40 - $15.23 |  | 4,800 |  |  | 4.81 |  | $ | 10.21 |  |  | 3,540 |  |  | $ | 10.66 |
Schedule of Nonvested Restricted Stock Units | A summary of our non-vested restricted stock units as of September 30, 2015 and changes during the twelve months then ended is presented below (in thousands, except per common share amounts):
| Number of Awards |  | Weighted Average Grant Date Fair Value
Nonvested at September 30, 2014 | 171 |  |  | $ | 9.35 |
Granted | 503 |  |  | $ | 8.27 |
Vested | (91 | ) |  | $ | 9.66 |
Canceled | (40 | ) |  | $ | 7.77 |
Nonvested at September 30, 2015 | 543 |  |  | $ | 8.41 |

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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