Annual report pursuant to Section 13 and 15(d)

Capital Structure - Narrative (Details)

Capital Structure - Narrative (Details)											2 Months Ended	3 Months Ended		12 Months Ended
Capital Structure - Narrative (Details)	Feb. 06, 2020 USD ($) $ / shares shares	Feb. 03, 2020 $ / shares shares	Sep. 04, 2019 USD ($) day $ / shares shares	Mar. 08, 2019 USD ($) $ / shares shares	Dec. 27, 2018 $ / shares shares	Dec. 26, 2018 shares	Sep. 25, 2018 shares	Sep. 24, 2018 shares	Aug. 17, 2018 USD ($) $ / shares shares	Nov. 17, 2017 USD ($) shares	Mar. 10, 2020 shares	Sep. 30, 2019 USD ($) $ / shares shares	Dec. 31, 2018 $ / shares shares	Dec. 31, 2019 USD ($) class_of_stock Vote $ / shares shares	Dec. 31, 2018 USD ($) $ / shares shares	Oct. 31, 2015 shares	Oct. 20, 2015 class_of_stock	Dec. 31, 2014 shares
Capital Structure
Number of classes of stock authorized to issue \| class_of_stock																	2
Number of shares of capital stock authorized to issue (in shares)														205,000,000
Common stock, shares authorized (in shares)													200,000,000	200,000,000	200,000,000
Preferred stock, shares authorized (in shares)													5,000,000	5,000,000	5,000,000
Common stock, par value (in dollars per share) \| $ / shares									$ 0.001				$ 0.001	$ 0.001	$ 0.001
Preferred stock, par value per share (in dollars per share) \| $ / shares													$ 0.001	$ 0.001	$ 0.001
Preferred stock, shares outstanding (in shares)													2,857,143	2,857,143	2,857,143
Proceeds from issuance of Series B convertible preferred stock upon warrant exercise, net \| $														$ 0	$ 5,685,038
Deemed distribution to shareholder \| $															$ 1,657,383
Common stock
Capital Structure
Number of shares available under warrant (in shares)																22,328
Consideration issued (in shares)															5,774,464
Issuance of stock (in shares)														1,818,182
Series B convertible preferred stock \| Preferred Stock
Capital Structure
Preferred stock conversion ratio					0.20	0.20							0.20	0.20
Number of shares available under warrant (in shares)																		625,208
Preferred stock, shares outstanding (in shares)														2,857,143
Common Stock
Capital Structure
Number of shares available under warrant (in shares)														4,024,708
Number of redemption or sinking fund provisions \| class_of_stock														0
Number of votes per share \| Vote														1
Number of preemptive, conversion or subscription rights \| class_of_stock														0
Private Placement
Capital Structure
Number of shares available under warrant (in shares)					14,285,714
Exercise price per share (in dollars per share) \| $ / shares					$ 0.40
Proceeds from issuance of Series B convertible preferred stock upon warrant exercise, net \| $															$ 5,700,000
Sale of stock price per share (in dollars per share) \| $ / shares									$ 3.91
Proceeds from issuance or sale of equity \| $									$ 3,900,000
Private Placement \| Common stock
Capital Structure
Issuance of stock (in shares)									1,000,000
Private Placement \| Series B convertible preferred stock \| Preferred Stock
Capital Structure
Preferred stock, shares authorized (in shares)						2,857,143							2,857,143		2,857,143
Preferred stock, par value per share (in dollars per share) \| $ / shares					2.00
Armistice Purchase Agreement
Capital Structure
Number of shares issued (in shares)			1,200,000									1,200,000
Sale of stock price per share (in dollars per share) \| $ / shares			$ 3.132									$ 3.132
Consideration received \| $			$ 3,700,000									$ 3,700,000
Trading days \| day			5
Bought Deal
Capital Structure
Number of shares issued (in shares)				1,818,182
Sale of stock price per share (in dollars per share) \| $ / shares				$ 5.50
Consideration received \| $				$ 9,000,000
TRx
Capital Structure
Unregistered shares of common stock issued or issuable as part of acquisition \| $										$ 8,100,000
Shares issued upon closing (in shares)										5,184,920
Contingent shares issuable as part of acquisition (in shares)										2,349,968
Ichorion
Capital Structure
Consideration issued (in shares)							5,800,000	5,800,000
Subsequent Event \| Series B convertible preferred stock \| Preferred Stock
Capital Structure
Shares converted (in shares)											1,600,000
Subsequent Event \| Common Stock \| Common stock
Capital Structure
Shares issued upon conversion (in shares)											8,000,000
Subsequent Event \| Registered Direct Offering
Capital Structure
Number of shares issued (in shares)	1,306,282
Sale of stock price per share (in dollars per share) \| $ / shares	$ 3.98
Subsequent Event \| Aevi
Capital Structure
Common stock, par value (in dollars per share) \| $ / shares		$ 0.001
Consideration issued (in shares)		3,900,000
Incentive Warrants
Capital Structure
Number of shares available under warrant (in shares)													4,000,000		4,000,000
Exercise price per share (in dollars per share) \| $ / shares					$ 12.50								$ 12.50		$ 12.50
Expected life					5 years 6 months								5 years 6 months		5 years 6 months
Deemed distribution to shareholder \| $															$ 1,700,000
Armistice \| Bought Deal
Capital Structure
Number of shares issued (in shares)				363,637
Armistice \| Subsequent Event \| Registered Direct Offering \| Common stock
Capital Structure
Number of shares issued (in shares)	1,256,282
Consideration received \| $	$ 5,000,000