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Property, Plant and Equipment
 12 Months Ended
Dec. 31, 2022
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment

2. Property, Plant and Equipment

 

Property, plant and equipment consisted of the following at December 31, 2022 and December 25, 2021:

 Schedule of Property Plant and Equipment

   Useful Life  2022   2021 
Equipment  3-5 years  $13,965,126   $15,099,035 
Leasehold improvements    Life of the lease   3,600,557    3,571,694 
Furniture and fixtures  3 years   174,622    101,777 
Equipment under construction      550,219    233,237 
Property, plant and equipment, gross      18,290,524    19,005,743 
Accumulated depreciation and amortization      (16,458,883)   (17,116,780)
Property, plant and equipment, net     $1,831,641   $1,888,963 

 

Depreciation expense for the fiscal years 2022, 2021 and 2020 was approximately $0.7 million.