CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY - USD ($)	Series 1 warrants Additional paid-in capital	Series 1 warrants Common stock - voting	Series 1 warrants	Series 2 warrants Additional paid-in capital	Series 2 warrants	Series B-1 convertible preferred stock Additional paid-in capital Series B-1 convertible preferred stock	Series B-1 convertible preferred stock Series B-1 convertible preferred stock	Series B convertible preferred stock Additional paid-in capital	Series B convertible preferred stock Series B convertible preferred stock	Series B convertible preferred stock Series B-1 convertible preferred stock	Series B convertible preferred stock Common stock - voting	Series B convertible preferred stock	PIPE Financing warrants, Dec 2019 Additional paid-in capital	PIPE Financing warrants, Dec 2019	Bridge Note Warrants Additional paid-in capital	Bridge Note Warrants	LOC warrant Additional paid-in capital	LOC warrant	Interest Expense Convertible Debt, March 2018 Additional paid-in capital	Interest Expense Convertible Debt, March 2018 Common stock - voting	Interest Expense Convertible Debt, March 2018	Payment of Interest August 2018 Additional paid-in capital	Payment of Interest August 2018 Common stock - voting	Payment of Interest August 2018	October 2018 Equity Financing Additional paid-in capital	October 2018 Equity Financing	Equity Forward Contracts October 2018 Additional paid-in capital	Equity Forward Contracts October 2018 Common stock - voting	Equity Forward Contracts October 2018	Office Lease September 2018 Additional paid-in capital	Office Lease September 2018	Private placement	CVP Notes Additional paid-in capital	CVP Notes Common stock - voting	CVP Notes	CVP Exchange Notes Additional paid-in capital	CVP Exchange Notes Common stock - voting	CVP Exchange Notes	Additional paid-in capital Series B convertible preferred stock	Additional paid-in capital Series B-1 convertible preferred stock	Additional paid-in capital Series B-1 preferred - Ionic (Oct 2, 2019)	Additional paid-in capital	Accumulated deficit	Series A convertible preferred stock	Series B convertible preferred stock	Series B-1 convertible preferred stock	Series B-2 convertible preferred stock	Series B-1 preferred - Ionic (Oct 2, 2019)	Common stock - voting	Common stock - non-voting	Total
Beginning Balance at Dec. 31, 2017																																																	$ 6
Ending Balance at Dec. 31, 2018																																												$ 9,000,002					$ 35	$ 4,030
Balance (in shares) at Dec. 31, 2018																																												5,524,926	0	0	0		351,472	40,301,237
Balance at Dec. 31, 2017																																										$ 79,661,456	$ (62,404,722)							$ 4,262	$ 17,261,002
Balance (in shares) at Dec. 31, 2017																																																	59,721	42,617,893
Increase (decrease) in Stockholders' Equity (Deficit)
Issuance of preferred stock and common stock in a private placement																																										4,999,997		$ 9,000,002					$ 3		5,000,000
Issuance of preferred stock and common stock in a private placement (in shares)																																												5,524,926					28,011
Deemed dividend on the series A and series B convertible preferred stock																																										(995,000)		$ 995,000							(995,000)
Issuance of common stock																																										2,055,872							$ 2		2,055,874
Issuance of common stock (In shares)																																																	17,075
Pre-funded Oasis Warrants - exercise by Oasis (Nov 14, 2019) (in shares)																												48,930
Issuance of common stock in exchange for services																																										6,425									6,425
Issuance of common stock in exchange for services (in shares)																																																	47
Issuance of common stock upon settlement of prepaid equity forward contracts, net																											$ 2,054,995	$ 5	$ 2,055,000
Issuance of common stock in exchange for payment of interest expense																			$ 704,725		$ 704,725
Issuance of common stock in exchange for payment of interest expense (in shares)																				4,081
Issuance of common stock for Tempesta Settlement, October 2019																																										1,607,420							$ 1		1,607,421
Issuance of common stock for Tempesta Settlement, October 2019 (in shares)																																																	13,665
Issuance of common stock in exchange for payment of interest expense (Kingdon)																						$ 479,808		$ 479,808
Issuance of common stock in exchange for payment of interest expense (Kingdon) (in shares)																							4,582
Beneficial conversion feature of convertible preferred stock																																										995,000		(995,000)							995,000
Payments of Stock Issuance Costs																										$ 1,900,000																									2,117,550
Conversion of Series B-1 into common-Ionic (Dec 20, 2019)																																										232								$ (232)
Conversion of Series B-1 into common-Ionic (Dec 20, 2019) (in shares)																																																	2,206	(2,316,656)
Issuance of common stock July 2018																																										624,896							$ 1		624,897
Issuance of common stock July 2018 (in shares)																																																	6,725
Issuance of common stock in debt financing September 2018																																										48,000									48,000
Issuance of common stock in debt financing September 2018 (in shares)																																																	1,071
Issuance of warrants in debt financing September 2018																														$ 493,688	$ 493,688											118,149									118,149
Fractional common stock shares repurchased																																										(30)									(30)
Stock-based compensation																																										2,023,873									2,023,873
Net loss																																											(32,146,057)								(32,146,057)
Issuance of warrants in PIPE Financing, December 2019														$ 30,951
Issuance of warrants for services																																										23,895									23,895
Issuance of common stock, net of issuance costs of $1.9 million, October 2018																																										5,026,434							$ 17		5,026,451
Issuance of common stock, net of issuance costs of $1.9 million, October 2018 (in shares)																																																	165,358
Balance at Dec. 31, 2018																																										99,929,835	(94,550,779)						$ 35	$ 4,030	5,383,121
Balance (in shares) at Dec. 31, 2018																																																	351,472	40,301,237
Ending Balance at Dec. 31, 2019																																												$ 9,894,492	$ 475,928		$ 1,236,064
Balance (in shares) at Dec. 31, 2019																																												5,524,926	1,971	0	10,165
Increase (decrease) in Stockholders' Equity (Deficit)
Issuance of common stock														1,035,000																											$ (145,615)	(384,688)				$ 384,688		$ 145,615
Issuance of common stock (In shares)																																2,500,000														49		14
Pre-funded Oasis Warrants - exercise by Oasis (Nov 14, 2019) (in shares)			1,250,000
Issuance of common stock to Oasis, put exercise																																										2,602,876							$ 20		2,602,896
Issuance of common stock to Oasis, put exercise (in shares)																																																	195,319
Issuance of common stock, registered offering																																										266,265							$ 1		266,266
Issuance of common stock, registered offering (in shares)																																																	19,019
Issuance of common stock in exchange for services																																	$ 8,224,883	$ 40	$ 8,224,923							139,983							$ 17		140,000
Issuance of common stock in exchange for services (in shares)																																		395,970															166,667
Issuance of prepaid equity forward contracts, November 2019																									$ 1,713,275	$ 1,713,275
Issuance of common stock upon settlement of prepaid equity forward contracts, net																																										9,761							$ 99		9,860
Issuance of common stock upon settlement of prepaid equity forward contracts, net, November 2019 (in shares)																																																	986,000
Issuance of common stock for Tempesta Settlement, October 2019																																				$ 6,672,838	$ 112	$ 6,672,950				48,796							$ 4		48,800
Issuance of common stock for Tempesta Settlement, October 2019 (in shares)																																					1,119,440												40,000
Issuance of common stock in exchange for payment of interest expense (Kingdon)																																										446,727							$ 2		446,729
Issuance of common stock in exchange for payment of interest expense (Kingdon) (in shares)																																																	19,752
Issuance of Series B convertible preferred stock or common stock in Class A Units, net	$ 388,861	$ 277,774	$ 388,889									$ 2,604,686																														1,393,689			$ 2,604,686				$ 289		1,393,978
Issuance of Series B convertible preferred stock or common stock in Class A Units, net (in shares)		28																																											10,787				2,886,500
Beneficial conversion feature of convertible preferred stock						$ 384,688	$ (384,688)	$ 4,239,870	$ (4,239,870)																															$ 145,615						$ (145,615)
Payments of Stock Issuance Costs																																													$ 875,184
Modification of Series 1 warrants	522,143		522,143
Deemed dividend attributable to Series 1 warrant modification	(522,143)		(522,143)			(384,688)	384,688																																$ (4,239,870)	$ (145,615)					$ 4,239,870	145,615
Warrant reclassification from liability to equity															$ 4,259,327	$ 4,259,327	$ 71,079	$ 71,079
Conversion of preferred stock into common stock, December 2019								$ 2,128,317	$ (2,128,758)		$ 441																															530,240				$ (530,303)			$ 63
Conversion of preferred stock into common stock, December 2019 (in shares)									(8,816)	(63)	4,408,000																																			10,001	190		630,063
Issuance of Series B-2 preferred for Pre-Funded Warrants-Oasis (12/23/19)																																										(1,235,994)					$ 1,236,064		$ (70)
Issuance of Series B-2 preferred for Pre-Funded Warrants-Oasis (12/23/19) (shares)																																															10,165		(695,127)
Issuance of warrants in debt financing September 2018						$ 20,000	$ 20,000																																												493,688
Fractional common stock shares repurchased (in shares)																																																	(14)
Stock-based compensation																																										2,988,544									2,988,544
Net loss																																											(38,539,436)								(38,539,436)
Issuance of warrants in PIPE Financing, December 2019				$ 5,025,515	$ 5,025,515								$ 465,000	$ 465,000																												1,034,750							$ 250		1,035,000
Issuance of warrants in PIPE Financing, December 2019 (in shares)																																																	2,500,000
Accretion to redemption value of redeemable preferred stock																																										(894,490)		$ 894,490							(894,490)
Issuance of common stock, March 2018	5,025,515		5,025,515
Issuance of common stock upon exercise of Series 1 warrants, October 2019	$ 1,361,015	$ 97	$ 1,361,112
Issuance of common stock upon exercise of Series 1 warrants, October 2019(in shares)		972,226
Balance at Dec. 31, 2019																																										$ 142,046,304	$ (133,090,215)						$ 1,428	$ 4,030	$ 10,673,539
Balance (in shares) at Dec. 31, 2019																																																	14,273,061	40,301,237