Fair Value Measurements - Money Market Funds (Details) - USD ($) $ / shares in Units, $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Fair Value Measurements
Cash equivalents:		$ 1
Other non-current liabilities:
Total	$ 3,324	9,813
Transfers between fair value measurements levels	0
Level 1
Fair Value Measurements
Cash equivalents:		1
Other non-current liabilities:
Total	1,920	4,792
Level 2
Other non-current liabilities:
Total	54	146
Level 3
Other non-current liabilities:
Total	1,350	4,875
Money market funds
Fair Value Measurements
Cash equivalents:		1
Money market funds | Level 1
Fair Value Measurements
Cash equivalents:		1
Public Warrants
Other non-current liabilities:
Other non-current liabilities	$ 1,920	$ 4,792
Warrants, exercise price	$ 0.20	$ 0.50
Public Warrants | Level 1
Other non-current liabilities:
Other non-current liabilities	$ 1,920	$ 4,792
Private Warrants
Other non-current liabilities:
Other non-current liabilities	54	146
Private Warrants | Level 2
Other non-current liabilities:
Other non-current liabilities	54	146
Fair value
Liabilities:
Derivative liability	1,350	4,875
Fair value | Level 3
Liabilities:
Derivative liability	$ 1,350	$ 4,875