Supplemental Financial Information (Tables)

3 Months Ended

Mar. 31, 2022

Supplemental Financial Information [Abstract]

Summary of Activity in Allowance for Doubtful Accounts

The following table summarizes activity in the allowance for doubtful accounts for the three months ended:

(in thousands)	March 31, 2022			March 31, 2021
Balance at beginning of period	$	(930	)	$	(405	)
Uncollectible accounts (charged) credited to expense		80			(130	)
Balance at end of period	$	(850	)	$	(535	)

Summary of Inventories

(in thousands)	March 31, 2022		December 31, 2021
Raw materials	$	592	$	433
Work-in-process		174		16
Finished Goods		—		—
Total Inventories	$	766	$	449

Summary of Property and Equipment, Net

(in thousands)	March 31, 2022			December 31, 2021
Advanced manufacturing machinery & quality equipment	$	5,740		$	5,705
Software		3,709			2,912
Computer & office hardware		1,226			1,149
Furniture and fixtures		136			39
Leasehold improvements		3,400			3,048
Construction in-progress		293			-
Total property, plant and equipment		14,504			12,853
Accumulated depreciation and amortization		(3,978	)		(3,325	)
Property, plant and equipment (net)	$	10,526		$	9,528