Summary of Accounting Policies (Tables)

9 Months Ended

Sep. 30, 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 (in thousands):

	As of September 30, 2021		As of December 31, 2020
Extended service contracts	$	223	$	271
Subscription software licenses		462		572
Total contract liabilities		685		843
Less: long-term portion		1		5
Contract liabilities – current	$	684	$	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 (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Product revenue recognized at a point in    time	$	5,992	$	4,549	$	17,565	$	10,369
Product revenue recognized over time		194		126		601		321
Software revenue recognized at a point in    time		150		163		668		322
Software revenue recognized over time		1,551		1,294		4,472		3,668
Total	$	7,887	$	6,132	$	23,306	$	14,680

Schedule of Reconciliation of Change in Estimated Warranty

The following table provides a reconciliation of the change in estimated warranty (in thousands):

	For Nine Months Ended September 30, 2021
Balance at beginning of period	$	1,584
Provision for warranties issued		958
Warranty costs incurred		(1,163	)
Balance at end of period	$	1,379
Current portion	$	996
Non-current portion		383
Total	$	1,379