Inventories

6 Months Ended

Jun. 30, 2023

Inventory Disclosure [Abstract]

Inventories

4. Inventories

Inventories consist of the following (in thousands):

	June 30, 2023			December 31, 2022
Raw materials	$	7,002		$	6,556
Work in process		267			530
Finished goods		2,345			2,697
Reserve for excess and obsolescence		(1,911	)		(1,907	)
Total inventory	$	7,703		$	7,876

The reserve for excess and obsolescence primarily includes Niobe Systems and related raw materials and spare parts.