Liquidity and Going Concern Uncertainty (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended
	Mar. 31, 2023	Mar. 30, 2023	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 06, 2020	Oct. 21, 2020
Class of Stock [Line Items]
Cash	$ 3,714		$ 3,714	$ 6,586	$ 3,085	$ 9,000
Working capital	$ 3,335		3,335
Net loss			(1,219)	(4,539)
Net cash used in operating activities			$ (844)	$ (2,404)
Preferred stock, convertible, par value (in dollars per share)	$ 0.0001		$ 0.0001		$ 0.0001
Exercise price (in dollars per share)	$ 6.66		$ 6.66		$ 66.34	$ 66.34	$ 82.35	$ 61.20
Series F Preferred Stock
Class of Stock [Line Items]
Percentage of common stock to be issued at minimum price	19.99%		19.99%
Exercise price (in dollars per share)	$ 975		$ 975
Private Placement | Preferred Warrants
Class of Stock [Line Items]
Number of shares issuable (in shares)	32,750	32,750	32,750
Private Placement | Investor Warrants
Class of Stock [Line Items]
Number of shares issuable (in shares)		3,830,413
Private Placement | Placement Agent Warrants
Class of Stock [Line Items]
Number of shares issuable (in shares)		306,433
Exercise price (in dollars per share)		$ 1.71
Private Placement | Series F Preferred Stock
Class of Stock [Line Items]
Number of shares issued (in shares)	6,550	6,550
Preferred stock, convertible, par value (in dollars per share)		$ 0.0001
Shares issuable upon conversion (in shares)		3,830,409
Gross proceeds		$ 6,386
Escrow deposit		$ 4,000
Percentage of common stock to be issued at minimum price		19.99%
Percentage of cash fees		8.00%