Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Condensed Consolidated Balance Sheets
Accounts receivable from a related party	$ 23	$ 23
Common stock par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	175,000,000	175,000,000
Common stock, shares issued (in shares)	32,399,257	32,359,895
Common stock, shares outstanding (in shares)	32,399,257	32,359,895
Preferred Stock par value (in dollars per share)	$ 0.001	$ 0.001
Preferred Stock, Shares Authorized	25,000,000	25,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0