Significant Accounting Policies - Reverse Stock Split (Details)	Jan. 08, 2018
Common Stock
Class of Stock [Line Items]
Number of shares issued for every share converted in reverse stock split	0.3707

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770

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Balance Type:	na
Period Type:	duration