Fair Value of Financial Assets and Liabilities (Details Narrative) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Investments	$ 10,070	$ 10,345
Accounting Standards Update 2016-01 [Member] \| DatChat [Member]
Investments	1,000
Accounting Standards Update 2016-01 [Member] \| Mellow Scooters [Member]
Investments	$ 100

Sum of the carrying amounts as of the balance sheet date of all investments.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(h))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

Name:	us-gaap_Investments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant