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Restructuring and Integration Expense (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Restructuring and integration activities [Roll Forward]      
Exit activity liability, beginning of period $ 179 $ 336  
Restructuring and integration costs provided for during the period 392 464 [1] $ 2,585
Cash payments (492) (371)  
Reclassification of environment liability [1]   (250)  
Exit activity liability, end of period 79 179 336
Soot Sensor Product Line Relocation [Member]      
Restructuring and integration activities [Roll Forward]      
Cash payments (392)    
Integration Costs [Abstract]      
Total relocation expected expenses $ 600    
Soot Sensor Product Line Relocation [Member] | Maximum [Member]      
Integration Costs [Abstract]      
Expected period for completion of relocation 6 months    
Pollak Relocation [Member]      
Restructuring and integration activities [Roll Forward]      
Exit activity liability, beginning of period $ 0    
Cash payments   (214)  
Exit activity liability, end of period   0  
Plant Rationalization Programs [Member]      
Restructuring and integration activities [Roll Forward]      
Cash payments (100) (157)  
Exit activity liability, end of period 79    
Workforce Reduction [Member]      
Restructuring and integration activities [Roll Forward]      
Exit activity liability, beginning of period 179 336  
Restructuring and integration costs provided for during the period 0 0 [1]  
Cash payments (100) (157)  
Reclassification of environment liability [1]   0  
Exit activity liability, end of period 79 179 336
Other Exit Costs [Member]      
Restructuring and integration activities [Roll Forward]      
Exit activity liability, beginning of period 0 0  
Restructuring and integration costs provided for during the period 392 464 [1]  
Cash payments (392) (214)  
Reclassification of environment liability [1]   (250)  
Exit activity liability, end of period $ 0 $ 0 $ 0
[1] Included in restructuring and integration costs in 2020 is a $0.3 million increase in environmental cleanup costs related to ongoing monitoring and remediation in connection with the prior closure of our manufacturing operations at our Long Island City, New York location.  The environmental liability has been reclassed to accrued liabilities as of December 31, 2020.