v3.25.2
Supplemental Quarterly Information (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Dec. 31, 2023
Revenue, net $ 99     $ 654           $ 231 $ 3,392 $ 3,276 $ 1,536
Cost of revenues (392)     (83)           (704) (560) (1,488) (6,964)
Gross profit / (loss) (293)     571           (473) 2,832 1,788 (5,428)
Income from grants                       900 1,600
Research and development expenses (342)     (695)           (698) (2,110) (3,225) (7,567)
Credit loss – customer contracts 328               515 3,617 1,048
Operating loss (2,925)     2,673           (5,863) (1,692) (18,369) (50,713)
Finance income / (expenses), net (325)     (54)           (569) (286) (535) 104
Foreign exchange gains / (losses), net 293     (156)           394 (165) (272) 101
Net gains/ (losses) on disposal/write-offs of property, plant and equipment and intangible assets     12,714           12,735 6,235
Other income / (expenses), net     2           2 6 7 (870)
Loss before income taxes (3,797)     (10,213)           (7,070) (19,684) (30,069) (50,984)
Income taxes 0     0           (1) 55 55 82
Net loss from continuing operations (3,797)     (10,213)           (7,071) (19,629) (30,014) (50,902)
Income (loss) from discontinued operations     (1,060)           (1,000) (10,980) (20,495)
Net loss (Unaudited) $ (3,797)     $ (11,273)           $ (7,071) $ (20,629) $ (40,994) $ (71,397)
Net loss per share                          
Basic loss per share from continuing operations $ (1.42)     $ (4.28)           $ (2.66) $ (7.91) $ (15.65) $ (37.24)
Basic weighted average number of shares 2,665,089     2,634,179           2,653,490 2,609,549 2,618,857 1,917,179
Diluted loss per share from continuing operations $ (1.42)     $ (4.28)           $ (2.66) $ (7.91) $ (15.65) $ (37.24)
Diluted weighted average number of shares 2,665,089     2,634,179           2,653,490 2,609,549 2,618,857 1,917,179
Fourth Quarter [Member]                          
Revenue, net   $ (244)       $ 1,314              
Cost of revenues   (592)       (5,628)              
Gross profit / (loss)   (836)       (4,314)              
Income from grants   (512)       794              
Research and development expenses   (704)       (2,822)              
Administrative and selling expenses   (7,364)       (18,039)              
Sublease income         139              
Amortization of intangible assets   26       319              
Credit loss – customer contracts   692       (985)              
Impairment loss – intangible assets and goodwill                        
Operating loss   (8,750)       (24,908)              
Fair value change of warrant liability         39              
Finance income / (expenses), net   (235)       626              
Foreign exchange gains / (losses), net   1,565       (6)              
Loss contingency   147                      
Net gains/ (losses) on disposal/write-offs of property, plant and equipment and intangible assets   6,500                    
Other income / (expenses), net   3       (1)              
Loss before income taxes   (770)       (24,250)              
Income taxes         (122)              
Net loss from continuing operations   (770)       (24,372)              
Income (loss) from discontinued operations   (1,073)       (1,360)              
Net loss (Unaudited)   $ (1,843)       $ (25,732)              
Net loss per share                          
Basic loss per share from continuing operations   $ (0.29)       $ (11.41)              
Basic weighted average number of shares   2,636,508       2,136,840              
Diluted loss per share from continuing operations   $ (0.29)       $ (11.41)              
Diluted weighted average number of shares   2,636,508       2,136,840              
Third Quarter [Member]                          
Revenue, net     $ 128       $ 112            
Cost of revenues     (336)       (807)            
Gross profit / (loss)     (208)       (695)            
Income from grants     137       242            
Research and development expenses     (411)       (1,197)            
Administrative and selling expenses     (3,135)       (8,000)            
Sublease income           139            
Amortization of intangible assets     1       (117)            
Credit loss – customer contracts     (4,309)       (3)            
Impairment loss – intangible assets and goodwill                        
Operating loss     (7,927)       (9,631)            
Fair value change of warrant liability           (134)            
Finance income / (expenses), net     (14)       (72)            
Foreign exchange gains / (losses), net     (1,672)       (22)            
Loss contingency                        
Net gains/ (losses) on disposal/write-offs of property, plant and equipment and intangible assets                      
Other income / (expenses), net     (2)       (113)            
Loss before income taxes     (9,615)       (9,972)            
Income taxes           81            
Net loss from continuing operations     (9,615)       (9,891)            
Income (loss) from discontinued operations     (8,907)       (1,955)            
Net loss (Unaudited)     $ (18,522)       $ (11,846)            
Net loss per share                          
Basic loss per share from continuing operations     $ (3.65)       $ (4.92)            
Basic weighted average number of shares     2,636,508       2,012,382            
Diluted loss per share from continuing operations     $ (3.65)       $ (4.92)            
Diluted weighted average number of shares     2,636,508       2,012,382            
Second Quarter [Member]                          
Revenue, net       $ 654       $ 21          
Cost of revenues       (83)       (183)          
Gross profit / (loss)       571       (162)          
Income from grants       424       360          
Research and development expenses       (695)       (1,774)          
Administrative and selling expenses       2,374       4,932          
Sublease income             138          
Amortization of intangible assets       1       (188)          
Credit loss – customer contracts             (60)          
Impairment loss – intangible assets and goodwill               (9,763)          
Operating loss       2,673       (6,517)          
Fair value change of warrant liability             98          
Finance income / (expenses), net       (54)       (487)          
Foreign exchange gains / (losses), net       (156)       185          
Loss contingency       36                  
Net gains/ (losses) on disposal/write-offs of property, plant and equipment and intangible assets       (12,714)                
Other income / (expenses), net       2       (798)          
Loss before income taxes       (10,213)       (7,519)          
Income taxes             1          
Net loss from continuing operations       (10,213)       (7,518)          
Income (loss) from discontinued operations       (1,060)       (14,313)          
Net loss (Unaudited)       $ (11,273)       $ (21,831)          
Net loss per share                          
Basic loss per share from continuing operations       $ (3.88)       $ (4.22)          
Basic weighted average number of shares       2,634,179       1,780,574          
Diluted loss per share from continuing operations       $ (3.88)       $ (4.22)          
Diluted weighted average number of shares       2,634,179       1,780,574          
First Quarter [Member]                          
Revenue, net         $ 2,738       $ 89        
Cost of revenues         (477)       (346)        
Gross profit / (loss)         2,261       (257)        
Income from grants         838       186        
Research and development expenses         (1,415)       (1,774)        
Administrative and selling expenses         (6,193)       (7,718)        
Sublease income         145       127        
Amortization of intangible assets         1       (221)        
Credit loss – customer contracts                      
Impairment loss – intangible assets and goodwill                        
Operating loss         (4,365)       (9,657)        
Fair value change of warrant liability         (59)       391        
Finance income / (expenses), net         (232)       37        
Foreign exchange gains / (losses), net         (9)       (56)        
Loss contingency         (4,907)                
Net gains/ (losses) on disposal/write-offs of property, plant and equipment and intangible assets         (21)              
Other income / (expenses), net         4       42        
Loss before income taxes         (9,471)       (9,243)        
Income taxes         (55)       122        
Net loss from continuing operations         (9,416)       (9,121)        
Income (loss) from discontinued operations         60       (2,867)        
Net loss (Unaudited)         $ (9,356)       $ (11,988)        
Net loss per share                          
Basic loss per share from continuing operations         $ (3.64)       $ (5.26)        
Basic weighted average number of shares         2,584,918       1,733,439        
Diluted loss per share from continuing operations         $ (3.64)       $ (5.26)        
Diluted weighted average number of shares         2,584,918       1,733,439