Property, Plant, and Equipment (Tables)

12 Months Ended

Mar. 31, 2022

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

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

	Estimated Useful Life (in years)			As of March 31,				As of December 31,
				2022		2021		2020
Automobiles	5			$	23	$	23	$	23
Leasehold improvements	4	to	20	3,150		3,059		3,059
Computer software and equipment	2	to	7	44,852		36,956		34,324
Machinery and equipment	3	to	5	16,447		15,699		15,527
Furniture and fixtures	5	to	20	2,634		2,586		2,587
Work in progress (1)	N/A			6,678		1,314		2,155
Total cost				73,784		59,637		57,675
Accumulated depreciation				(41,655)		(35,141)		(33,749)
Total property, plant and equipment, net				$	32,129	$	24,496	$	23,926

(1) Work in progress includes information technology assets and production tooling.

Schedule Of Depreciation Expense

Depreciation expense was as follows (in thousands):

	Year Ended March 31,		Three-Months Ended March 31, (transition period)		Year Ended December 31,
	2022		2021		2020		2019
Depreciation expense	$	8,554	$	2,002	$	7,779	$	7,314