Summary of Significant Accounting Policies - Schedule of Disaggregated Revenues (Details) - USD ($) $ in Thousands		12 Months Ended
	Apr. 08, 2018	Dec. 31, 2020	Dec. 31, 2019
Total revenues		$ 1,868	$ 1,728
Subscription and Advertisement [Member]
Total revenues		1,265	1,295
Grant Revenues [Member]
Total revenues	$ 386	307	180	[1]
Other Revenues [Member]
Total revenues		$ 296	$ 253	[1]

[1] A reclassification of $37,000 was made from subscription and advertisement revenues to other revenues to conform to current period presentation.