Summary of Significant Accounting Policies and Basis of Presentation (Details Textual)	6 Months Ended
Jun. 30, 2019
Summary of Significant Accounting Policies and Basis of Presentation (Textual)
Revenue allocated to remaining performance obligations, description	Revenue allocated to remaining performance obligations represent contracted revenue that has not yet been recognized (“contracted not recognized”). Contracted not recognized revenue was $ as of June 30, 2019, of which the Company expects to recognize 100% of the revenue over the next 12 months.

Description of nature of remaining performance obligation for which optional exemption was applied not to disclose amount of transaction price allocated to and timing of revenue recognition for remaining performance obligation.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130558-203045

Name:	us-gaap_RevenueRemainingPerformanceObligationOptionalExemptionNature
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration