Equity (Tables)

12 Months Ended

Dec. 31, 2021

Equity [Abstract]

Summary of Outstanding Warrants

A summary of all outstanding warrants is as follows (in thousands):

	Number of Warrants		Strike Price		Expiration
2017 PIPE Warrants		2,312	$	2.00	June 2022
2018 PIPE Warrants		8,479	$	3.50	May 2023
SafeOp Surgical Merger Warrants		1,195	$	3.50	May 2023
2018 Squadron Medical Warrants		845	$	3.15	May 2027
2019 Squadron Medical Warrants		4,839	$	2.17	May 2027
2020 Squadron Medical Warrants		1,076	$	4.88	May 2027
Executive Warrants		1,327	$	5.00	December 2022
Other*		111	$	5.40	Various through December 2024
Total		20,184
*Represents weighted average strike price