Commitments (Details) - Licensing of ValidClick Technology - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
Mar. 31, 2020	Sep. 30, 2020
Other Commitments [Line Items]
Other income	$ 500
Other Income		$ 54

Amount of income related to nonoperating activities, classified as other.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7)(d))
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

Name:	us-gaap_OtherNonoperatingIncome
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration