Net (Loss) Income Per Share - Basic and diluted net income (loss) per share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Numerator:
Net (loss) income for basic net (loss) income per share attributable to common stockholders	$ (6,457)	$ 4,167	$ (13,261)	$ (5,412)
Reversal of fair market value remeasurement net gain on Convertible Notes		(12,752)		(7,810)
Add back of interest expense from the Convertible Notes		93		651
Net loss for diluted net loss per share attributable to common stockholders	$ (6,457)	$ (8,492)	$ (13,261)	$ (12,571)
Denominator:
Weighted-average common shares outstanding, basic (in shares)	9,381,344	8,246,582	9,381,344	5,426,688
Convertible Notes		208,641		734,279
Weighted-average common shares outstanding, diluted (in shares)	9,381,344	8,455,223	9,381,344	6,160,967
Net (loss) income per share attributable to common stockholders, basic (in dollars per share)	$ (0.69)	$ 0.51	$ (1.41)	$ (1)
Net (loss) income per share attributable to common stockholders, diluted (in dollars per share)	$ (0.69)	$ (1)	$ (1.41)	$ (2.04)