Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

Name:	us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Commitments and Contingencies (Narrative) (Details)			12 Months Ended
Commitments and Contingencies (Narrative) (Details)	Jan. 02, 2018 ft²	Jan. 24, 2014 ft²	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Lease term		5 years
Area of office and laboratory space under lease (in square feet)		5,979
Rent expense \| $			$ 226,001	$ 259,050
Subsequent Event [Member]
Lease term	5 years
Area of office and laboratory space under lease (in square feet)	5,156