Employee Benefit Plan (Details)	9 Months Ended
Sep. 30, 2018 USD ($)
Employee Benefit Plan (Textual)
Employer contributions amount	$ 450,000

Amount of discretionary contributions made by an employer to a defined contribution plan.

No definition available.

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