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Number of customers.

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Amount of allowance for credit loss on accounts receivable.

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Face amount or stated value per share of common stock.

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Specific incremental costs directly attributable to a proposed or actual offering of securities which are deferred at the end of the reporting period.

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The cash outflow for cost incurred directly with the issuance of an equity security.

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The amount of preferred stock dividends that is an adjustment to net income apportioned to common stockholders.

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The cash inflow associated with the amount received from entity's first offering of stock to the public.

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Amount of expense for research and development. Includes, but is not limited to, cost for computer software product to be sold, leased, or otherwise marketed and writeoff of research and development assets acquired in transaction other than business combination or joint venture formation or both. Excludes write-down of intangible asset acquired in business combination or from joint venture formation or both, used in research and development activity.

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Summary of Significant Accounting Policies - Additional Information (Details)		3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 31, 2025 USD ($) $ / shares shares	Sep. 30, 2025 USD ($) Customer $ / shares	Sep. 30, 2024 USD ($) Customer	Sep. 30, 2025 USD ($) Customer $ / shares	Sep. 30, 2024 USD ($) Customer	Dec. 31, 2024 USD ($) Customer $ / shares shares	Dec. 31, 2023 USD ($) Customer $ / shares
Concentration Risk [Line Items]
Common stock, par value \| $ / shares		$ 0.000001		$ 0.000001		$ 0.000001	$ 0.000001
Conversion of redeemable convertible preferred stock to common stock on initial public offering, Shares \| shares	12,729,240					12,729,349
Issued shares of common stock upon exercise of warrants \| shares	424,033
Stock issued in settlement of RSUs \| shares	34,254
Deferred offering costs		$ 2,800,000		$ 2,800,000
Total fair value of nonmonetary transaction				1,600,000		$ 1,600,000
Accounts receivable, allowance for credit loss						0	$ 0
Allowance for sales returns and allowances						1,000,000	1,400,000
Research and development expense		8,889,000	$ 9,568,000	26,474,000	$ 28,395,000	37,168,000	44,020,000
Unrecognized tax benefits						0	1,000,000
Income tax examination, penalties and interest expense						0	0
Income tax examination, penalties and interest accrued						0	0
Deemed dividends		$ 0	$ 305,000	$ 0	$ 2,724,000	$ 2,724,000	$ 1,941,000
Initial Public Offering
Concentration Risk [Line Items]
Net proceeds from initial public offering	$ 102,700,000
Number of shares, issued \| shares	4,600,000
Common stock, par value \| $ / shares	$ 0.000001
Underwriting discounts and commissions	$ 7,700,000
Conversion of redeemable convertible preferred stock to common stock on initial public offering, Shares \| shares	12,729,240
Over Allotment Option
Concentration Risk [Line Items]
Number of shares, issued \| shares	600,000
Accounts Receivable \| Customer Consentration Risk
Concentration Risk [Line Items]
Number of customers \| Customer		3	3	3	3	3	2
Accounts Receivable \| Customer One \| Customer Consentration Risk
Concentration Risk [Line Items]
Customer concentration risk, percent				38.00%	61.00%	49.00%	60.00%
Accounts Receivable \| Customer Two \| Customer Consentration Risk
Concentration Risk [Line Items]
Customer concentration risk, percent				26.00%	17.00%	19.00%	31.00%
Accounts Receivable \| Customer Three \| Customer Consentration Risk
Concentration Risk [Line Items]
Customer concentration risk, percent				11.00%	10.00%	13.00%
Net Sales \| Customer Consentration Risk
Concentration Risk [Line Items]
Number of customers \| Customer		3	3	3	3	3	3
Net Sales \| Customer One \| Customer Consentration Risk
Concentration Risk [Line Items]
Customer concentration risk, percent		41.00%	47.00%	39.00%	37.00%	41.00%	30.00%
Net Sales \| Customer Two \| Customer Consentration Risk
Concentration Risk [Line Items]
Customer concentration risk, percent		26.00%	26.00%	28.00%	23.00%	24.00%	32.00%
Net Sales \| Customer Three \| Customer Consentration Risk
Concentration Risk [Line Items]
Customer concentration risk, percent		21.00%	14.00%	18.00%	20.00%	21.00%	17.00%