Property and equipment consisted of the following (dollars in thousands):


	Estimated Useful Life (Years)		June 30, 2026			December 31, 2025
Land		—	$	875		$	875
Buildings	39-40			17,389			17,389
Building improvements	5-40			91,818			90,988
Machinery and equipment	3-15			70,018			68,785
Furniture, fixtures and office equipment	5-10			3,166			3,122
Computer equipment and software		3		8,780			8,780
Construction in progress		—		10,937			6,397
				202,983			196,336
Less accumulated depreciation				(117,823	)		(113,913	)
Total property and equipment, net			$	85,160		$	82,423

Depreciation expense related to property and equipment was as follows (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2026		2025		2026		2025
Depreciation expense	$	2,031	$	2,039	$	4,046	$	4,097

During the six months ended June 30, 2026, the Company retired $0.1 million of building improvements and furniture, fixtures and office equipment, as they were no longer in service. The net book value for the disposed assets was de minimis. During the three and six months ended June 30, 2025, the Company retired $0.1 million of machinery and equipment as it was no longer in service. The net book value for the disposed assets in both periods was de minimis.