Equipment and Leasehold Improvements

12 Months Ended

Dec. 31, 2022

Property, Plant and Equipment [Abstract]

Equipment and Leasehold Improvements

(5)   Equipment and Leasehold Improvements   Equipment and leasehold improvements consist of the following: 

	As of December 31,
	2022			2021
Machinery and equipment	$	19,899		$	18,289
Office equipment		1,014			961
Office furniture		110			110
Leasehold improvements		5,140			4,900
Construction in progress		2,952			1,062
		29,115			25,322
Less: Accumulated depreciation and amortization		(21,166	)		(20,610	)
	$	7,949		$	4,712

Depreciation expense was $557 and $444, for the years ended December 31, 2022 and 2021, respectively.