Capital Stock - Common Stock Warrants (Details) - USD ($) $ / shares in Units, $ in Thousands					3 Months Ended		6 Months Ended
	Jun. 07, 2023	Apr. 23, 2023	Apr. 18, 2023	Mar. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Jun. 28, 2021	Dec. 06, 2020	Oct. 21, 2020
Class of Warrant or Right [Line Items]
Preferred stock, convertible, par value (in dollars per share)					$ 0.0001		$ 0.0001		$ 0.0001
Warrants issued (in shares)					4,137,846		4,137,846
Warrants outstanding, ending (in dollars per share)					$ 1.73		$ 1.73		$ 66.34	$ 66.34
Net proceeds from exercise of common stock warrants							$ 534	$ 0
Warrants outstanding, ending (in shares)					4,137,846		4,137,846		343,099	343,099
Expired (in shares)	1,934	667					2,601
Private Placement | Preferred Warrants
Class of Warrant or Right [Line Items]
Number of shares issuable (in shares)				32,750
Private Placement | Investor Warrants
Class of Warrant or Right [Line Items]
Number of shares issuable (in shares)				3,830,413
Private Placement | Placement Agent Warrants
Class of Warrant or Right [Line Items]
Number of shares issuable (in shares)				306,433
Series F Preferred Stock
Class of Warrant or Right [Line Items]
Warrants outstanding, ending (in dollars per share)					$ 975		$ 975
Series F Preferred Stock | Private Placement
Class of Warrant or Right [Line Items]
Proceeds from private placement, net of fees and amounts held in escrow (in shares)				6,550
Preferred stock, convertible, par value (in dollars per share)				$ 0.0001
Percentage of cash fees				8.00%
Payments of stock issuance costs					$ 38		$ 951
Common stock issuable upon conversion of Common Stock warrants
Class of Warrant or Right [Line Items]
Deemed dividend					$ 751	$ 25
Common stock issuable upon conversion of Common Stock warrants | Private Placement
Class of Warrant or Right [Line Items]
Warrants issued (in shares)						4,136,846
Warrant term						5 years
Warrants outstanding, ending (in dollars per share)						$ 1.71
Beneficial ownership limitation						4.99%
Common Stock
Class of Warrant or Right [Line Items]
Warrants outstanding, ending (in dollars per share)			$ 1.71
Issuance of common shares from warrant exercise (in shares)			339,498				339,498
Net proceeds from exercise of common stock warrants			$ 534
Payments of stock issuance costs			$ 46
Warrants outstanding, ending (in shares)											1,000	1,934	667