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Intangible assets, net (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Identifiable intangible assets [Abstract]    
Gross amount $ 1,606 $ 1,606
Accumulated amortization (1,364) (1,209)
Amortization expense 155 186
Future amortization expense [Abstract]    
2023 154  
2024 88  
Thereafter 0  
Purchased Technology [Member]    
Identifiable intangible assets [Abstract]    
Gross amount 1,591 1,591
Accumulated amortization (1,349) (1,195)
Patents [Member]    
Identifiable intangible assets [Abstract]    
Gross amount 15 15
Accumulated amortization $ (15) $ (14)