Summary of Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Summary of Balances of Contract Liabilities

The Company recognizes a contract liability when a customer pays for good or services for which the Company has not yet transferred control. The balances of the Company’s contract liabilities are as follows:

	Year Ended December 31,
	2021		2020
	(in thousands)
Extended service contracts	$	251	$	271
Subscription software licenses		520		572
Total contract liabilities		771		843
Less: long-term portion		—		5
Contract liabilities – current	$	771	$	838

Schedule of Revenues Disaggregated by Segment and Timing of Goods and Services Transferred

The following table provides information regarding revenues disaggregated by segment and the timing of when goods and services are transferred:

	Year Ended December 31,
	2021		2020
	(in thousands)
Product revenue recognized at a point in time	$	25,025	$	16,857
Product revenue recognized over time		786		481
Software revenue recognized at a point in time		851		997
Software revenue recognized over time		6,535		5,016
Total	$	33,197	$	23,351

Schedule of Reconciliation of Change in Estimated Warranty Liabilities

The following table provides a reconciliation of the change in estimated warranty liabilities for the years ended December 31, 2021 and 2020:

	Year Ended December 31,
	2021			2020
Balance at beginning of period	$	1,584		$	3,447
Provision for warranties issued		1,515			996
Warranty costs incurred		(1,479	)		(2,859	)
Balance at end of period	$	1,620		$	1,584
Current portion	$	1,132		$	1,202
Non-current portion		488			382
Total	$	1,620		$	1,584