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Stock-Benefit Plans and Equity Transactions - Summary of All Outstanding Warrants for Common Stock (Details)
9 Months Ended
Sep. 30, 2022
$ / shares
shares
Class Of Warrant Or Right [Line Items]  
Number of Warrants 17,486,000
2018 PIPE Warrants  
Class Of Warrant Or Right [Line Items]  
Number of Warrants 8,340,000
Strike Price | $ / shares $ 3.50
Expiration May 2023
SafeOp Surgical Merger Warrants  
Class Of Warrant Or Right [Line Items]  
Number of Warrants 938,000
Strike Price | $ / shares $ 3.50
Expiration May 2023
2018 Squadron Medical Warrants  
Class Of Warrant Or Right [Line Items]  
Number of Warrants 845,000
Strike Price | $ / shares $ 3.15
Expiration May 2027
2019 Squadron Medical Warrants  
Class Of Warrant Or Right [Line Items]  
Number of Warrants 4,839,000
Strike Price | $ / shares $ 2.17
Expiration May 2027
2020 Squadron Medical Warrants  
Class Of Warrant Or Right [Line Items]  
Number of Warrants 1,076,000
Strike Price | $ / shares $ 4.88
Expiration May 2027
Executive Warrants  
Class Of Warrant Or Right [Line Items]  
Number of Warrants 1,327,000
Strike Price | $ / shares $ 5.00
Expiration December 2022
Other Warrants  
Class Of Warrant Or Right [Line Items]  
Number of Warrants 121,000 [1]
Strike Price | $ / shares $ 6.28 [1]
Expiration Various through February 2026 [1]
[1] Weighted-average strike price.