Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2023

Revenue from Contract with Customer [Abstract]

Schedule of Revenue Generated from Geographic Regions

Revenue generated from the following geographic regions was (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
United States	$	2,064	$	2,274	$	4,118	$	4,310
Germany		59		635		119		653
Rest of World		1,061		1,329		3,253		3,967
	$	3,184	$	4,238	$	7,490	$	8,930

Schedule of Revenue by Timing of Transfer of Goods or Services

Revenue by timing of transfer of goods or services was (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
Goods or services transferred at a point in time	$	733	$	2,020	$	2,502	$	4,713
Goods or services transferred over time		2,451		2,218		4,988		4,217
	$	3,184	$	4,238	$	7,490	$	8,930

Schedule of Revenue by Contract Type

Revenue by product group was (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
License and service contracts	$	2,748	$	3,884	$	5,605	$	7,215
Subscription-based contracts		436		354		1,885		1,715
	$	3,184	$	4,238	$	7,490	$	8,930

Schedule of Changes in Contract Assets and Liabilities

The following tables present changes in our contract assets and liabilities during the three and six months ended June 30, 2023 and 2022 (in thousands):

	Balance at Beginning of Period		Revenue Recognized In Advance of Billings		Billings			Balance at End of Period
Three months ended June 30, 2023
Contract assets:
Unbilled receivables	$	3,483	$	620	$	(1,283	)	$	2,820
Three months ended June 30, 2022
Contract assets:
Unbilled receivables	$	3,175	$	1,515	$	(1,260	)	$	3,430
	Balance at Beginning of Period		Billings		Revenue Recognized			Balance at End of Period
Three months ended June 30, 2023
Contract liabilities:
Deferred revenue	$	3,796	$	2,330	$	(1,767	)	$	4,359
Three months ended June 30, 2022
Contract liabilities:
Deferred revenue	$	3,300	$	2,052	$	(1,819	)	$	3,533

	Balance at Beginning of Period		Revenue Recognized In Advance of Billings		Billings			Balance at End of Period
Six months ended June 30, 2023
Contract assets:
Unbilled receivables	$	2,929	$	2,960	$	(3,069	)	$	2,820
Six months ended June 30, 2022
Contract assets:
Unbilled receivables	$	3,087	$	3,001	$	(2,658	)	$	3,430
	Balance at Beginning of Period		Billings		Revenue Recognized			Balance at End of Period
Six months ended June 30, 2023
Contract liabilities:
Deferred revenue	$	3,733	$	4,228	$	(3,602	)	$	4,359
Six months ended June 30, 2022
Contract liabilities:
Deferred revenue	$	3,740	$	3,274	$	(3,481	)	$	3,533