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PROPERTY, PLANT AND EQUIPMENT, NET
 9 Months Ended
Sep. 30, 2023
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT PROPERTY, PLANT AND EQUIPMENT, NET
Property, plant and equipment, net consisted of the following:
September 30, 2023December 31, 2022
(In thousands)
Machinery and equipment$3,166 $3,057 
Furniture and fixtures579 585 
Computer hardware and software488 660 
Leasehold improvements1,018 1,025 
5,251 5,327 
Accumulated depreciation and amortization(2,604)(1,790)
Property, plant and equipment, net$2,647 $3,537 
Total depreciation and amortization expense in the consolidated statements of operations was $330,000 and $329,000 for the three months ended September 30, 2023 and 2022, respectively, and $1.1 million and $1.0 million for the nine months ended September 30, 2023 and 2022, respectively. Our Intellectual Property Operations and parent company include depreciation and amortization in general and administrative expenses. For the three months ended September 30, 2023 and 2022, our Industrial Operations allocated depreciation and amortization, totaling $298,000 and $301,000, respectively, to all applicable operating expense categories, including cost of sales of $99,000 and $104,000, respectively. For the nine months ended September 30, 2023 and 2022, our Industrial Operations allocated depreciation and amortization, totaling $952,000 and $957,000, respectively, to all applicable operating expense categories, including cost of sales of $315,000 and $352,000, respectively.