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Property, Plant and Equipment
 12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment consisted of:
December 31,
2021		December 31,
2020
Machinery and equipment$32,985 $38,038 
Leasehold improvements51,571 52,167 
 84,556 90,205 
Less accumulated depreciation and amortization(45,175)(47,502)
 $39,381 $42,703 
Depreciation and amortization expense related to property, plant and equipment for the years ended December 31, 2021, 2020 and 2019 was $8,144, $8,373 and $8,456, respectively.