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Restatement of Quarterly Financial Information (Restated and Unaudited) - CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2022
Jun. 30, 2022
Sep. 30, 2021
Jun. 30, 2022
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2022
Dec. 31, 2021
Mar. 31, 2022
Dec. 31, 2020
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Loss for the period $ (5,096) $ (4,575) $ (4,757) $ (8,683) $ (13,779) $ (13,363) $ (21,198) $ (18,457)    
Accumulated deficit (398,308)   (379,434)   (398,308) (379,434) (405,727) (384,529) $ (388,637)  
Issue of common stock on At Market, net of expenses             478 3,870    
Reclassification of redeemable common stock             (1,636)      
Accretion on redeemable common stock (102) (33)   (33) (135)   (135)      
Total stockholders' equity $ 22,497 29,532 41,594 29,532 22,497 41,594 15,939 37,693 33,840 $ 33,259
Common Stock                    
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Issue of common stock on At Market, net of expenses             0 1    
Reclassification of redeemable common stock   (1)         $ (1)      
Reclassification of redeemable common stock (in shares) 9,422,089           (1,130,000)      
Total stockholders' equity $ 9 10   10 9   $ 9 $ 10   6
Number of shares issued (in shares)               2,078,214    
Additional Paid-in Capital                    
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Issue of common stock on At Market, net of expenses             478 $ 3,869    
Reclassification of redeemable common stock   (1,071)         (1,635)      
Accretion on redeemable common stock (102) (33)         (135)      
Total stockholders' equity 422,542 424,010   424,010 422,542   422,973 422,960   400,071
Accumulated Other Comprehensive Loss                    
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Total stockholders' equity             (1,316) (748)   (746)
Accumulated Deficit                    
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Loss for the period     (4,757)       (21,198) (18,457)    
Total stockholders' equity (398,308) (393,212) (379,434) (393,212) (398,308) (379,434) (405,727) (384,529) (388,637) $ (366,072)
Error in the accounting treatment of contract deposit-related invoices.                    
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Total stockholders' equity   29,532   29,532       37,693 33,840  
Error in the accounting treatment of contract deposit-related invoices. | Common Stock                    
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Reclassification of redeemable common stock   $ (1)                
Reclassification of redeemable common stock (in shares)   10,552,089                
Total stockholders' equity   $ 10   10            
Error in the accounting treatment of contract deposit-related invoices. | Additional Paid-in Capital                    
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Reclassification of redeemable common stock   (1,071)                
Accretion on redeemable common stock   (33)                
Total stockholders' equity   424,010   424,010            
Error in the accounting treatment of contract deposit-related invoices. | Accumulated Deficit                    
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Accumulated deficit                 (388,637)  
Total stockholders' equity   (393,212)   (393,212)       (384,529)    
Error in the accounting treatment of contract deposit-related invoices. | As previously reported                    
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Loss for the period     (4,987)     (13,593)   (18,887)    
Accumulated deficit (398,738)   (379,664)   (398,738) (379,664) (406,157) (384,959) (389,067)  
Issue of common stock on At Market, net of expenses 1,581                  
Total stockholders' equity $ 22,067 $ 30,207 41,364 30,207 22,067 41,364 15,509 37,263 33,410  
Error in the accounting treatment of contract deposit-related invoices. | As previously reported | Common Stock                    
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Reclassification of redeemable common stock (in shares) 9,422,089 11,350,289                
Total stockholders' equity $ 9 $ 11   11 9          
Error in the accounting treatment of contract deposit-related invoices. | As previously reported | Additional Paid-in Capital                    
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Total stockholders' equity 422,542 425,114   425,114 422,542          
Error in the accounting treatment of contract deposit-related invoices. | As previously reported | Accumulated Deficit                    
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Loss for the period     (4,987)         (18,887)    
Accumulated deficit                 (389,067)  
Total stockholders' equity (398,738) (393,642) (379,664) (393,642) (398,738) (379,664) (406,157) (384,959) (389,067)  
Error in the accounting treatment of contract deposit-related invoices. | Adjustments                    
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Loss for the period     230     230   430    
Accumulated deficit 430   230   430 230 430 430 430  
Issue of common stock on At Market, net of expenses (1,581)                  
Total stockholders' equity 430 (675) 230 (675) 430 230 430 430 430  
Error in the accounting treatment of contract deposit-related invoices. | Adjustments | Common Stock                    
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Reclassification of redeemable common stock   $ (1)                
Reclassification of redeemable common stock (in shares)   (798,200)                
Total stockholders' equity   $ (1)   (1)            
Error in the accounting treatment of contract deposit-related invoices. | Adjustments | Additional Paid-in Capital                    
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Reclassification of redeemable common stock   (1,071)                
Accretion on redeemable common stock (102) (33)                
Total stockholders' equity 1,104 (1,104)   (1,104) 1,104          
Error in the accounting treatment of contract deposit-related invoices. | Adjustments | Accumulated Deficit                    
Error Corrections and Prior Period Adjustments Restatement [Line Items]                    
Loss for the period     230         430    
Accumulated deficit                 430  
Total stockholders' equity $ 430 $ 430 $ 230 $ 430 $ 430 $ 230 $ 430 $ 430 $ 430