Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Narrative) (Details)

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Commitments and Contingencies (Narrative) (Details)
12 Months Ended
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Jan. 02, 2018
ft²
Jan. 24, 2014
ft²
Commitments and Contingencies Disclosure [Abstract]        
Lease term     5 years 5 years
Area of office and laboratory space under lease (in square feet) | ft²     5,156 5,979
Rent expense | $ $ 305,391 $ 226,001