Stockholders' Equity - Transactions with Oasis Capital and Underwritten Public Offering (Details) - USD ($)			1 Months Ended		2 Months Ended	3 Months Ended		9 Months Ended
	Apr. 01, 2019	Jan. 07, 2019	Jul. 31, 2019	Jul. 23, 2019	Jun. 14, 2019	Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Warrants issued								12,713
Amount of shares issued								$ 1,199,122	$ 2,055,874
Convertible debt										$ 11,239,170
Issuance of common stock in conversion of debt									$ 1,607,421
Underwritten Public Offering
Gross proceeds from issuance			$ 14,049,697
Stock issuance and other costs			$ 2,510,303
Series B convertible preferred stock
Units issued			10,787			10,787		10,787
Number of warrants are converted for each share			1
Number of shares issued for preferred stock converted				500
Series B convertible preferred stock | Underwritten Public Offering
Number of shares issued for preferred stock converted			10,787
Series 1 warrants
Warrants issued				8,280,000
Term of warrant				5 years
Series 1 warrants | Underwritten Public Offering
Warrants issued			8,280,000
Number of shares in exchange for each unit			500
Series 1 warrants | Class A units | Underwritten Public Offering
Warrants issued			5,393,500
Series 2 warrants
Warrants issued				8,280,000
Term of warrant				5 years
Series 2 warrants | Underwritten Public Offering
Warrants issued			8,280,000
Number of shares in exchange for each unit			500
Series 2 warrants | Class A units | Underwritten Public Offering
Warrants issued			5,393,500
Class A units
Stock issuance and other costs								$ 875,122
Class A units | Underwritten Public Offering
Units issued			2,886,500	2,886,500
Public offering price			$ 2.00	$ 2.00
Number of shares in exchange for each unit			1	1
Gross proceeds from issuance			$ 5,773,000
Stock issuance and other costs			875,184
Class A units | Common stock - voting | Underwritten Public Offering
Gross proceeds from issuance			$ 2,074,244
Issuance of common stock (In shares)			2,886,500
Class A units | Series 1 warrants
Units issued				2,886,500
Class A units | Series 1 warrants | Underwritten Public Offering
Units issued				2,886,500
Public offering price				$ 2.00
Number of shares in exchange for each unit			1	1
Number of warrants are converted for each share				1
Gross proceeds from issuance			$ 1,849,378
Class A units | Series 2 warrants
Units issued				2,886,500
Class A units | Series 2 warrants | Underwritten Public Offering
Number of shares in exchange for each unit			1	1
Number of warrants are converted for each share				1
Gross proceeds from issuance			$ 1,849,378
Class B units
Units issued				10,787
Public offering price				$ 1,000
Stock issuance and other costs			$ 1,635,184
Class B units | Underwritten Public Offering
Units issued			10,787
Public offering price			$ 1,000
Class B units | Series B convertible preferred stock
Number of shares in exchange for each unit				1
Number of shares issued for preferred stock converted				500
Class B units | Series B convertible preferred stock | Underwritten Public Offering
Number of shares in exchange for each unit			1
Number of shares issued for preferred stock converted			500
Class B units | Series 1 warrants
Units issued				10,787
Number of shares in exchange for each unit				500
Class B units | Series 1 warrants | Underwritten Public Offering
Units issued				10,787
Public offering price				$ 1,000
Number of shares in exchange for each unit				500
Number of shares issued for preferred stock converted			500
Class B units | Series 1 warrants | Series B convertible preferred stock | Underwritten Public Offering
Number of shares in exchange for each unit				1
Number of shares issued for preferred stock converted				500
Class B units | Series 2 warrants
Units issued				10,787
Public offering price				$ 1,000
Number of shares in exchange for each unit				500
Class B units | Series 2 warrants | Underwritten Public Offering
Number of shares in exchange for each unit				500
Number of shares issued for preferred stock converted			500
Securities purchase agreement
Price per share	$ 19.60	$ 52.50
Issuance of common stock (In shares)					4,843
Amount of shares issued					$ 100,000
Par value (per share)					$ 0.0001
Common stock, shares issued							190,476
Securities purchase agreement | Registered Direct Offering
Price per share							$ 14.00
Gross proceeds from issuance							$ 266,266
Issuance of common stock (In shares)							19,019
Securities purchase agreement | Original Equity Line Offering
Common Stock, Shares Authorized	285,714	76,190
Number of shares offered		76,190
Number of additional shares authorized	285,714	114,286
Common stock, shares issued							76,190
Securities purchase agreement | Option
Common stock, shares issued							114,286