Significant Accounting Policies (Details) - Variable Interest Entity, Primary Beneficiary [Member] - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Significant Accounting Policies [Line Items]
Consolidated Assets	$ 123,224	$ 116,958
Consolidated Liabilities	$ 67,054	$ 90,260

The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (bb)
-URI http://asc.fasb.org/extlink&oid=64801991&loc=d3e5710-111685

Name:	us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant