Property, Plant and Equipment

12 Months Ended

Dec. 31, 2020

Property Plant And Equipment [Abstract]

Property, Plant and Equipment

(5)    Property, Plant and Equipment

Property, plant and equipment as of December 31, 2020 and 2019 consist of the following:

In thousands	Useful Life (in years)	December 31, 2020			December 31, 2019
Furniture and fixtures	5	$	1,699		$	1,636
Leasehold improvements	lesser of useful life or lease term		1,026			714
Software	3 - 5		617			617
Computer equipment	3 - 5		290			290
Construction in progress			—			123
Property, plant and equipment			3,632			3,380
Accumulated depreciation and amortization			(1,616	)		(1,019	)
Property, plant and equipment, net		$	2,016		$	2,361

The Company provides for depreciation and amortization using the straight-line method by charges to operations in amounts that depreciate the cost of the fixed asset over its estimated useful life. Depreciation expense for the years ended December 31, 2020, 2019, and 2018 were $0.6 million, $0.2 million, and less than $0.1 million, respectively. Upon retirement or sale of assets, the cost of the assets disposed and the related accumulated depreciation are removed from the consolidated balance sheet and any resulting gain or loss is credited or expensed to operations. Repairs and maintenance costs are expensed as incurred.