Subsequent Events (Details) - Subsequent Event [Member] € in Thousands, $ in Thousands	May 03, 2017 EUR (€)	May 03, 2017 USD ($)
Soundperience GmbH [Member]
Subsequent Event [Line Items]
Ownership interest	49.00%	49.00%
Soundperience GmbH Step One [Member]
Subsequent Event [Line Items]
Ownership interest	16.67%	16.67%
Business Acquisition, Cost of Acquired Entity, Purchase Price	€ 400	$ 440
Soundperience GmbH Step Two [Member]
Subsequent Event [Line Items]
Ownership interest	32.33%	32.33%
Business Acquisition, Cost of Acquired Entity, Purchase Price	€ 800	$ 880

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration