Debt - Securities Purchase Agreement (Details)								1 Months Ended		2 Months Ended		3 Months Ended					12 Months Ended
	Apr. 16, 2019 USD ($)	Oct. 10, 2018 USD ($)	Sep. 11, 2018 USD ($) shares	Aug. 02, 2018 USD ($)	Mar. 21, 2018 USD ($)	Feb. 26, 2018 USD ($)	Dec. 08, 2017 USD ($)	Apr. 30, 2019 USD ($) shares	Mar. 31, 2019 USD ($) shares	Jun. 30, 2019 USD ($)	Apr. 30, 2019 USD ($) shares	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($) shares	Dec. 31, 2018 USD ($) NotesSeries shares	Dec. 31, 2018 USD ($) item shares	Dec. 31, 2018 USD ($) shares	Dec. 31, 2019 USD ($) shares	Dec. 31, 2018 USD ($) shares	Oct. 31, 2019 USD ($)
Debt
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares														10,849	10,849	10,849	9,580	10,849
Principal amount																			$ 550,000
Proceeds from issuance of notes payable																	$ 5,050,000	$ 2,564,938
Convertible debt payable														$ 11,239,170	$ 11,239,170	$ 11,239,170		11,239,170
Convertible Notes Payable Gross														11,294,770	11,294,770	11,294,770		11,294,770
Discounts														55,600	55,600	55,600		55,600
Maximum aggregate redemption amount				$ 500,000
Convertible debt - current, net of discount														11,239,170	11,239,170	11,239,170		11,239,170
Principal less discount														$ 11,294,770	$ 11,294,770	11,294,770		11,294,770
Standstill fee																63,296
Increase in principal balance of notes payable																37,296
Standstill fee paid in cash																$ 26,000
Loss on extinguishment of debt										$ 428,776							(4,940,911)	(544,444)
Change in warrant liability																	$ (1,009,402)	$ (331,016)
Series A convertible preferred stock
Debt
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares														47,357	47,357	47,357	473,565	47,357
Chicago Venture Partners, L.P.
Debt
Total standstill fee																$ 499,403
Number of notes for which standstill fee paid														4	4
2019 Bridge Notes
Debt
Principal amount										$ 5,050,000		$ 5,050,000
Proceeds from issuance of notes payable												$ 5,050,000
Interest rate (as a percent)										12.00%		12.00%
Securities purchase agreement | Chicago Venture Partners, L.P.
Debt
Principal amount					$ 1,090,341
Securities purchase agreement | Promissory Note, December 08, 2017 | Chicago Venture Partners, L.P.
Debt
Principal amount							$ 1,587,500
Aggregate purchase price							1,100,000
Original issue discount							462,500
Transaction expenses							$ 25,000
Interest rate (as a percent)							8.00%
Convertible debt payable														$ 1,548,829	$ 1,548,829	1,548,829	$ 0	$ 1,548,829
Maximum aggregate redemption amount				$ 500,000
Standstill fee																141,737
Increase in principal balance of notes payable																85,737
Standstill fee paid in cash																56,000
Repayments of notes payable, principal											$ 1,673,237
Repayments of notes payable, interest											$ 180,258
Common stock issued in exchange of debt | shares											105,239
Loss on extinguishment of debt																	363,061
Securities purchase agreement | February 2018 note payable | Chicago Venture Partners, L.P.
Debt
Principal amount						$ 2,240,909
Proceeds from issuance of notes payable						1,560,000
Original issue discount						655,909
Transaction expenses						$ 25,000
Interest rate (as a percent)						8.00%
Convertible debt payable														2,290,865	2,290,865	2,290,865	0	2,290,865
Standstill fee																198,841
Increase in principal balance of notes payable																118,841
Standstill fee paid in cash																80,000
Repayments of notes payable, principal								$ 315,123	$ 2,044,627
Repayments of notes payable, interest								$ 1,755	$ 203,866
Common stock issued in exchange of debt | shares								203.45	114,802
Loss on extinguishment of debt	$ 37,740								$ 487,865							102,296
Securities purchase agreement | March 2018 note payable
Debt
Discounts					315,341
Securities purchase agreement | March 2018 note payable | Chicago Venture Partners, L.P.
Debt
Aggregate purchase price					750,000
Transaction expenses					$ 25,000
Interest rate (as a percent)					8.00%
Convertible debt payable														$ 1,005,880	$ 1,005,880	1,005,880	$ 0	$ 1,005,880
Standstill fee																95,529
Increase in principal balance of notes payable																57,529
Standstill fee paid in cash																38,000
Repayments of notes payable, principal													$ 1,050,114
Repayments of notes payable, interest													$ 85,681
Common stock issued in exchange of debt | shares													95,407
Loss on extinguishment of debt													$ 1,210,676			$ 223,824
Note purchase agreement | September 2018 L2 convertible note payable
Debt
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares			2,649
Principal amount			$ 455,000
Proceeds from issuance of notes payable			400,000
Original issue discount			$ 55,000
Interest rate (as a percent)			8.00%
Convertible Notes Payable Gross			$ 455,000
Principal less discount			$ 455,000
Loss on extinguishment of debt		$ 190,441