Inventory

6 Months Ended

Jun. 30, 2022

Inventory Disclosure [Abstract]

Inventory

(4) Inventory

Inventory consists of raw materials, work-in-process, tools inventory and finished goods. Raw materials (plastics and metals) become manufactured products in the additive and subtractive manufacturing processes. Work in progress represents manufacturing costs associated with buyer orders that are not yet complete. The tools inventory primarily consists of small consumable machine tools, cutting devices, etc. Finished goods represents product awaiting shipment. Inventory consists of the following as of June 30, 2022 and December 31, 2021 (in thousands):

	June 30,		December 31,
	2022		2021
Raw materials	$	141	$	105
Work-in-progress		639		1,324
Tools inventory		579		365
Finished goods		368		239
Total	$	1,727	$	2,033