Summary of Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2022

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:

	March 31,		December 31,
	2022		2021
	(in thousands)
Extended service contracts	$	187	$	251
Subscription software licenses		560		520
Total contract liabilities		747		771
Less: long-term portion		—		—
Contract liabilities – current	$	747	$	771

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:

	Three Months Ended March 31,
	2022		2021
	(in thousands)
Product revenue recognized at a point in time	$	7,027	$	5,614
Product revenue recognized over time		176		195
Software revenue recognized at a point in time		219		174
Software revenue recognized over time		1,611		1,444
Total	$	9,033	$	7,427

No individual customer accounted for more than 10% of sales for the three months ended March 31, 2022 and 2021.

Schedule of Reconciliation of Change in Estimated Warranty

The following table provides a reconciliation of the change in estimated warranty liabilities for the three months ended March 31, 2022 and 2021:

	Three Months Ended March 31,
	2022			2021
	(in thousands)
Balance at beginning of period	$	1,620		$	1,584
Provision for warranties issued		310			330
Warranty costs incurred		(315	)		(461	)
Balance at end of period	$	1,615		$	1,453
Current portion	$	1,153		$	1,043
Non-current portion		462			410
Total	$	1,615		$	1,453