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Property, Plant, and Equipment (Tables)
6 Months Ended
Jun. 30, 2023
Property, Plant and Equipment [Abstract]  
Components of Property, Plant and Equipment Property, plant, and equipment consist of the following:
(In thousands)June 30, 2023December 31, 2022Estimated Useful Life
Buildings and land$1,301 $1,301 
30 years - Buildings
Enterprise hardware and software1,856 1,855 3 years
Leaseholds1,781 1,774 Lesser of lease term or estimated useful life
Equipment1,263 1,222 7 years
Furniture201 201 5 years
Property, plant and equipment, gross6,402 6,353 
Accumulated depreciation(4,999)(4,931)
Property, plant and equipment, net$1,403 $1,422