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Stockholders' Equity - Summary of Warrants Outstanding (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Summary of warrants outstanding
Number of warrants (shares)	284,091	284,091
Common Stock Warrant Liability	$ 360,795	$ 1,167,614
March 2013 financing
Summary of warrants outstanding
Exercise price ($ per share)	$ 3.17
Expiration Date	Sep. 12, 2018
Number of warrants (shares)	284,091	284,091
Common Stock Warrant Liability	$ 360,795	$ 1,167,614

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Common stock warrants expiration date.

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Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Number of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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