Revenues - Disaggregation of Revenues (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation Of Revenue [Line Items]
Revenues		$ 4,438	$ 4,977	$ 13,381	$ 14,858
Subscriptions [Member]
Disaggregation Of Revenue [Line Items]
Revenues		2,650	3,090	8,023	9,379
Strategic Agreements [Member]
Disaggregation Of Revenue [Line Items]
Revenues		1,788	1,887	5,358	5,479
United States of America [Member]
Disaggregation Of Revenue [Line Items]
Revenues		3,550	4,023	10,729	11,710
United Kingdom [Member]
Disaggregation Of Revenue [Line Items]
Revenues		529	561	1,536	1,716
Other [Member]
Disaggregation Of Revenue [Line Items]
Revenues	[1]	$ 359	$ 393	$ 1,116	$ 1,432

[1] No individual country within the “Other” category accounted for 10% or more of revenues for any period presented.