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Property, Plant and Equipment
3 Months Ended
Mar. 31, 2021
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Property, Plant and Equipment  
Property, plant and equipment consists of the following:
March 31, 2021December 31, 2020
Land$257 $257 
Building and improvements11,660 11,660 
Machinery and equipment1,625 1,625 
Computer hardware and software301 300 
Furniture and fixtures74 74 
Construction in progress2,302 2,302 
16,219 16,218 
Less accumulated depreciation and amortization(270)(87)
Property, plant and equipment, net$15,949 $16,131 
 
The Company recorded depreciation expense of $0.2 million and $1.0 million for the three months ended March 31, 2021 and 2020, respectively.

The Company received the certificate of completion of its building in the fourth quarter of 2018. For the three months ended March 31, 2021 and March 31, 2020, there was $0.0 million and $0.3 million of payroll costs, respectively, capitalized as construction in progress.