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Stock-Based Compensation (Tables) | 12 Months Ended
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Sep. 30, 2025
Share-Based Payment Arrangement [Abstract] |
Schedule of Stock-Based Compensation Expense | Stock-based compensation expense is included in the consolidated results of operations as (in thousands):
| Year ended September 30,
| 2025 |  | 2024 |  | 2023
Cost of sales | $ | 794 |  |  | $ | 698 |  |  | $ | 628 |
Sales and marketing | 5,276 |  |  | 4,617 |  |  | 4,107 |
Research and development | 2,385 |  |  | 1,931 |  |  | 1,777 |
General and administrative | 6,908 |  |  | 5,913 |  |  | 6,774 |
Stock-based compensation before income taxes | 15,363 |  |  | 13,159 |  |  | 13,286 |
Income tax benefit | (3,292) |  |  | (2,783) |  |  | (2,840) |
Stock-based compensation after income taxes | $ | 12,071 |  |  | $ | 10,376 |  |  | $ | 10,446 |
Schedule of Stock Option Activity | Below is a summary of our stock options as of September 30, 2025 and changes during the twelve months then ended (in thousands, except per common share amounts):
|  | Options Outstanding |  | Weighted Average Exercise Price |  | Weighted Average Contractual Term (in years) |  | Aggregate Intrinsic Value (1)
Balance on September 30, 2024 |  | 1,382 |  |  | $19.01 |  |  |  |
Granted |  | 65 |  |  | 31.58 |  |  |  |
Exercised |  | (572) |  |  | 16.05 |  |  |  |
Forfeited / Canceled |  | (18) |  |  | 30.77 |  |  |  |
Balance on September 30, 2025 |  | 857 |  |  | $21.66 |  | 2.84 |  | $ | 12,390 |
Exercisable on September 30, 2025 |  | 686 |  |  | $20.18 |  | 2.37 |  | $ | 11,307 |
(1) The aggregate intrinsic value represents the total pre-tax intrinsic value, based on our closing stock price of $36.46 as of September 30, 2025, 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:
| Year ended September 30,
| 2025 |  | 2024 |  | 2023
Weighted average per option grant date fair value | $ | 16.24 |  |  | $ | 12.45 |  |  | $ | 19.87 |
Assumptions used for option grants: |  |  |  |  |
Risk free interest rate | 3.93% - 4.38% |  | 3.78% - 4.86% |  | 3.50% - 4.15%
Expected term | 6.00 years |  | 6.00 years |  | 6.00 years
Expected volatility | 48% - 49% |  | 46% - 48% |  | 46%
Weighted average volatility | 48% |  | 46% |  | 46%
Expected dividend yield | 0% |  | 0% |  | 0%
Schedule of Weighted Average Exercise Price Range and Remaining Contractual Life | As of September 30, 2025, the weighted average exercise price and remaining life of the stock options were (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
$11.18 - $13.76 |  | 117 |  |  | 0.92 |  | $ | 13.40 |  |  | 117 |  |  | $ | 13.40 |
$13.92 - $17.10 |  | 119 |  |  | 2.04 |  | $ | 16.44 |  |  | 119 |  |  | $ | 16.44 |
$17.32 - $19.78 |  | 129 |  |  | 1.45 |  | $ | 17.99 |  |  | 124 |  |  | $ | 17.92 |
$20.02 - $20.69 |  | 25 |  |  | 3.14 |  | $ | 20.31 |  |  | 20 |  |  | $ | 20.39 |
$21.53 - $21.53 |  | 132 |  |  | 3.17 |  | $ | 21.53 |  |  | 126 |  |  | $ | 21.53 |
$22.54 - $24.59 |  | 158 |  |  | 3.95 |  | $ | 23.91 |  |  | 116 |  |  | $ | 23.72 |
$25.15 - $41.16 |  | 144 |  |  | 4.74 |  | $ | 33.87 |  |  | 64 |  |  | $ | 34.67 |
$11.18 - $41.16 |  | 824 |  |  | 2.84 |  | $ | 21.66 |  |  | 686 |  |  | $ | 20.18 |
Schedule of Nonvested Restricted Stock Units | The following table presents a summary of our non-vested restricted stock units as of September 30, 2025 and changes during the twelve months then ended (in thousands, except per common share amounts):
| RSUs |  | PSUs
| Number of Awards |  | Weighted Average Grant Date Fair Value |  | Number of Awards |  | Weighted Average Grant Date Fair Value
Nonvested on September 30, 2024 | 846 |  |  | $ | 30.15 |  |  | 220 |  |  | $ | 30.55 |
Granted | 465 |  |  | $ | 32.24 |  |  | 162 |  |  | $ | 32.64 |
Vested | (279) |  |  | $ | 27.19 |  |  | (54) |  |  | $ | 30.57 |
Canceled | (66) |  |  | $ | 30.45 |  |  | (4) |  |  | $ | 19.78 |
Nonvested on September 30, 2025 | 966 |  |  | $ | 31.99 |  |  | 324 |  |  | $ | 31.71 |

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