9. Net Loss Per Share (Details) - shares	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016
Common stock dilutive securities	482,630	760,416
Convertible redeemable preferred stock
Common stock dilutive securities	0	638,416
Warrants
Common stock dilutive securities	317,630	0
Options to purchase common stock
Common stock dilutive securities	165,000	122,000

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