Summary of Significant Accounting Policies (Details 1) - shares	3 Months Ended	12 Months Ended
Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Dilutive adjustments to the number of common shares
Total	3,359,393	3,317,930	3,362,893	3,184,180
Common stock purchase warrants [Member]
Dilutive adjustments to the number of common shares
Total	2,577,238	2,853,575	2,577,238	2,853,575
Stock options [Member]
Dilutive adjustments to the number of common shares
Total	782,155	464,355	785,655	330,605

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration