Fair Value of Financial Assets and Liabilities - Additional Information (Details) - USD ($)			12 Months Ended
	Jun. 03, 2024	May 10, 2024	Dec. 31, 2023	Dec. 31, 2022	Jul. 31, 2023	Apr. 10, 2023	Dec. 31, 2021
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value, assets, level 1 to level 2 transfers, amount			$ 0	$ 0
Fair value, assets, level 2 to level 1 transfers, amount			0	0
Fair value, assets, transfers into level 3, amount			0	0
Fair value, assets, transfers out of level 3, amount			0	0
Fair value of the warrant liability			$ 4,359,000	$ 3,598,000	$ 2,645,000	$ 4,280,000	$ 25,962,000
Letter Agreement | Subsequent Event
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Increased total note payments		$ 2,175,000
Letter Agreement | Sanuwave | Subsequent Event
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Initial note payment		$ 100,000
Second note payment	$ 2,075,000
Letter Agreement | Sanuwave | Minimum [Member] | Subsequent Event
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Forbearance extend period		Feb. 28, 2024
Letter Agreement | Sanuwave | Maximum [Member] | Subsequent Event
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Forbearance extend period		Jun. 03, 2024