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Share-Based Compensation (Tables)

6 Months Ended

Mar. 31, 2025

Share-Based Payment Arrangement [Abstract]

Summary of Stock Option Activity

A summary of the activity in options of the Company as of March 31, 2025, is presented below:

		Number of Shares				Weighted Average Exercise Price
Outstanding September 30, 2024			3,695,740			$	2.84
Granted			1,010,250			$	2.82
Forfeited/expired			(206,458	)		$	4.91
Exercised			(24,147	)		$	1.78
Outstanding March 31, 2025			4,475,385			$	2.75
Exercisable March 31, 2025			1,358,716			$	3.02

Summary of Stock Options Outstanding

The following table summarizes information about stock options outstanding as of March 31, 2025:

Range of Exercise Prices		Number Outstanding				Weighted Average Remaining Contractual Term				Weighted Average Exercise Price				Number Exercisable				Weighted Average Exercise Price
$1.70-$2.59			1,574,332				6.20			$	2.15				216,933			$	1.70
$2.64-$2.70			1,538,000				5.11			$	2.69				383,709			$	2.69
$3.09-$3.55			1,234,053				3.71			$	3.37				679,262			$	3.36
$3.56-$6.87			129,000				5.46			$	4.67				78,812			$	5.27
			4,475,385				5.12			$	2.75				1,358,716			$	3.02

Summary of Weighted Average Assumptions

The weighted average estimated fair value of employee stock options granted during the six months ended March 31, 2025 and 2024, was calculated using the Black-Scholes option-pricing model with the following weighted average assumptions (annualized percentages):

		Six Months Ended March 31,
		2025				2024
Volatility			60.7	%			57.8	%
Risk-free interest rate			4.1	%			4.3	%
Dividend yield			0.0	%			0.0	%
Expected term in years			3.6				4.2

Summary of Company's RSU Activity

A summary of the Company’s RSUs as of March 31, 2025, is presented below:

		Number of Shares				Weighted Average Grant Date Fair Value
Outstanding September 30, 2024			288,059			$	2.78
Granted			243,816			$	2.27
Vested			(234,533	)		$	2.56
Forfeited/cancelled			—			$	—
Outstanding March 31, 2025			297,342			$	2.53

Summary of Share-based Compensation Expense

The Company recorded share-based compensation expense and classified it in the condensed consolidated statements of operations as follows:

		Three Months Ended March 31,								Six Months Ended March 31,
		2025				2024				2025				2024
Cost of revenues		$	20			$	28			$	37			$	42
Selling, general and administrative			338				439				664				827
Research and development			56				57				104				101
		$	414			$	524			$	805			$	970

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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Tabular disclosure of the changes in outstanding nonvested restricted stock units.

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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.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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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.

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