Property, Plant and Equipment

12 Months Ended

Dec. 31, 2022

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Note 4 - Property, Plant and Equipment

Property, plant and equipment are summarized as follows:

	December 31,
	2022			2021
Machinery and equipment	$	7,898		$	7,860
Furniture and fixtures		442			442
Office equipment		2,452			2,442
Building improvements		121			121
		10,913			10,865
Less:  Accumulated depreciation and amortization		(10,675	)		(10,575	)
	$	238		$	290

Depreciation expense amounted to approximately $100 and $110 during the years ended December 31, 2022 and 2021, respectively.