Revenue Recognition (Details Textual)	12 Months Ended
Dec. 31, 2019
Revenue Recognition and Deferred Revenue [Abstract]
Installation service performance obligations, description	The aggregate amount of the transaction price allocated to installation service performance obligations that are unsatisfied (or partially unsatisfied) as of December 31, 2019 and 2018 were $0 and $52, respectively.

Description of payment terms in contract with customer. Includes, but is not limited to, timing of payment, existence of financing component, variability of consideration and constraint on variable consideration.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130554-203045

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