Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Summary of Weighted-Average Outstanding Shares

The following weighted-average outstanding shares of potentially dilutive securities were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented because including them would have been anti-dilutive:

	2022		2021
Public Stockholders' warrants		10,350,000		—
Private Placement warrants		5,738,000		—
PIPE Investor warrants		700,000		—
SeaStar warrants		69,714		69,714
Options to purchase common stock		244,792		345,773
Restricted stock units		298,389		—
Total		17,400,895		415,487

Summary of Weighted Average Shares Outstanding for Basic and Diluted Net Loss Per Share

As the Business Combination and related transactions are being reflected as if they had occurred at the beginning of the period presented, the calculation of weighted average shares outstanding for basic and diluted net loss per share assumes that the shares issued in

connection with the Business Combination have been outstanding for the entire period presented.

Year Ended December 31:	2022			2021
Net loss	$	(23,013	)	$	(4,596	)
Weighted average shares outstanding - basic		8,211,256			7,238,767
Basic net loss per share	$	(2.80	)	$	(0.63	)
Weighted average shares outstanding - diluted		8,211,256			7,238,767
Diluted net loss per share	$	(2.80	)	$	(0.63	)