Amount of expense (income) related to adjustment to fair value of warrant liability.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section 25
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=109262497&loc=d3e20148-110875

Name:	us-gaap_FairValueAdjustmentOfWarrants
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Warrants (Details Textual) - USD ($)	1 Months Ended		10 Months Ended	12 Months Ended
Warrants (Details Textual) - USD ($)	Dec. 17, 2018	Nov. 30, 2018	Dec. 31, 2017	Dec. 31, 2018
Warrants (Textual)
Fair value of the warrants	$ 218,147	$ 659,697		$ (124,726)
Convertible Debts and IPO [Member]
Warrants (Textual)
Aggregate of warrants to purchase number of ordinary shares	38,071	80,453