v3.25.3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025 USD ($) shares	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) segment	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)	Jul. 03, 2025 shares	Jul. 02, 2025
Concentration Risk [Line Items]
Reverse stock split rounddown and cash in lieu payment	$ (1,000)
Reverse stock split			1-for-3.33
Net foreign exchange gains (losses)	20,000	$ 33,000	$ 191,000	$ 27,000
Number of operating segments \| segment			1
Number of reportable segments \| segment			1
Contract assets	0		$ 0		$ 0
Costs of revenue	1,624,000	1,309,000	4,417,000	3,661,000
Advertising costs	0	0	0	0
Research and development	6,090,000	4,522,000	12,589,000	12,004,000
Impairment of long-lived assets	0	0	0	0
Additional Paid-in-Capital
Concentration Risk [Line Items]
Reverse stock split rounddown and cash in lieu payment	$ (1,000)
Common Stock
Concentration Risk [Line Items]
Reverse stock split rounddown and cash in lieu payment (in shares) \| shares	(108)
IPO
Concentration Risk [Line Items]
Preferred stock, conversion date							Jul. 02, 2025
Warrants issued (in shares) \| shares						168,898
Shipping and handling
Concentration Risk [Line Items]
Costs of revenue	$ 28,000	15,000	71,000	35,000
Healthcare clinical trial activities
Concentration Risk [Line Items]
Research and development	$ 2,351,000	$ 2,291,000	$ 4,102,000	$ 6,310,000
Revenue \| Customer Concentration Risk \| Customer One
Concentration Risk [Line Items]
Concentration risk, percentage	10.00%	11.00%	10.00%	9.00%
Accounts Receivable \| Customer Concentration Risk \| Customer One
Concentration Risk [Line Items]
Concentration risk, percentage	25.00%		25.00%		21.00%

Amount of increase (decrease) in equity shares for down round feature triggered for convertible preferred stock.

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CapsoVision, Inc 10-Q