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Restructuring - Narrative (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Apr. 30, 2022
USD ($)
Dec. 31, 2021
USD ($)
Jun. 30, 2021
USD ($)
Apr. 30, 2021
USD ($)
Dec. 31, 2020
USD ($)
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Aug. 23, 2022
d
$ / shares
Jun. 30, 2022
USD ($)
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Jun. 30, 2020
USD ($)
Restructuring Cost and Reserve [Line Items]                            
Restructuring expense (recovery)           $ 0 $ 1 $ 0 $ (21)          
Purchase price $ 1,800     $ 1,500                    
Closing bid price of common stock (in USD per share) | $ / shares                   $ 1.00        
Number of consecutive days for which the bid price was below threshold | d                   30        
Stockholders' equity   $ 6,209 $ 5,603   $ 4,255 $ 1,526 $ 4,502 $ 1,526 $ 4,502   $ 4,171 $ 3,432 $ 3,278 $ 1,714
Warrant liability - modification         $ 1,400                  
December 2021 Private Placement                            
Restructuring Cost and Reserve [Line Items]                            
Proceeds from sale of common stock and warrants   $ 4,000                        
Investor Warrants                            
Restructuring Cost and Reserve [Line Items]                            
Proceeds from sale of common stock and warrants     $ 4,500