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Stockholders' Equity - Reverse Stock Split - Additional Information (Details)	May 02, 2018 $ / shares shares	Nov. 06, 2017	Mar. 31, 2018 $ / shares	Dec. 31, 2017 $ / shares
Stockholders Equity Note [Line Items]
Reverse stock split		1:350
Reverse stock split ratio		0.0029
Common stock, par value (in dollars per share)			$ 0.01	$ 0.01
Subsequent Event [Member]
Stockholders Equity Note [Line Items]
Reverse stock split	1:500
Reverse stock split ratio	0.002
OTCQB [Member] | Subsequent Event [Member]
Stockholders Equity Note [Line Items]
Reverse stock split	1:500
Reverse stock split ratio	0.002
Number of fractional shares were issued in connected with the reverse stock split | shares	0
Common stock, par value (in dollars per share)	$ 0.01

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- Definition

Stockholders equity note.

+ References

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Face amount or stated value per share of common stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Reduction in the number of shares during the period as a result of a reverse stock split.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21463-112644

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Description of the stock split arrangement. Also provide the retroactive effect given by a stock split that occurs after the balance date but before the release of financial statements.

+ References

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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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.

+ References

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)
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