Stock Incentive Plans - Share-Based Payment Arrangement, Activity (Details) - $ / shares		6 Months Ended	12 Months Ended
	Mar. 04, 2024	Jun. 30, 2024	Dec. 31, 2023
Number of Options
Ending balance, outstanding (in shares)		0
QT Imaging Incentive Plan
Number of Options
Beginning balance, outstanding (in shares)		1,249,809
Cancelled (in shares)		(12,128)
Terminated pursuant to Business Combination Agreement (in shares)	(1,237,681)	(1,237,681)
Ending balance, outstanding (in shares)		0	1,249,809
Weighted- Average Exercise Price
Beginning balance, outstanding, weighted-average exercise price (in dollars per share)		$ 24.80
Cancelled, weighted-average exercise price (in dollars per share)		22.40
Terminated pursuant to Business Combination Agreement, weighted-average exercise price (in dollars per share)		24.83
Ending balance, outstanding, weighted-average exercise price (in dollars per share)		$ 0	$ 24.80
Weighted-Average Remaining Contractual Life (years)
Outstanding, weighted-average remaining contractual term (in years)			6 years 10 months 24 days