Basis of Presentation - Narrative (Details)		3 Months Ended							9 Months Ended
	Aug. 08, 2019 shares	Sep. 30, 2019 USD ($) shares	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($) shares	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Sep. 30, 2019 USD ($) position shares	Sep. 30, 2018 USD ($)	Jan. 01, 2019 USD ($)	Dec. 31, 2017 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Working Capital Deficiency		$ (4,300,000)							$ (4,300,000)
Deferred revenue		4,990,047			$ 6,859,592				4,990,047
Total Stockholders' Deficit		(14,713,161)			(11,553,796)				(14,713,161)
Net loss		(556,914)	$ (1,171,723)	$ (124,907)		$ (332,429)	$ (1,004,104)	$ 506,877	(1,853,544)	$ (829,656)
Net cash used in operating activities									(1,432,514)	(331,722)
Cash and cash equivalents		960,401			$ 3,059,677	2,827,296			$ 960,401	2,827,296		$ 1,011,472
Cash Period Decrease		$ (2,100,000)
Organization, Consolidation And Presentation Of Financial Statements [Line Items]
Common and temporary equity shares authorized (in shares) | shares	32,000,000
Common stock, shares authorized (in shares) | shares	30,000,000	30,000,000			800,000,000				30,000,000
Preferred Stock, Shares Authorized | shares	2,000,000	2,000,000			2,000,000				2,000,000
Restructuring costs		$ 384,829	$ 202,679	$ 157,693	$ 310,314	$ 315,283	$ 809,245	$ (173,263)	$ 745,201	$ 951,265
Operating lease right-of-use assets		2,107,529			$ 0				2,107,529		$ 2,900,000
Operating Lease, Liability		2,622,421							$ 2,622,421		$ 3,600,000
Redeemable Convertible Preferred Stock [Member]
Organization, Consolidation And Presentation Of Financial Statements [Line Items]
Stockholders' Equity Note, Stock Split, Conversion Ratio	0.01
Restructuring Costs Under 2019 Plan
Organization, Consolidation And Presentation Of Financial Statements [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | position									23
Restructuring costs		$ 200,000