Stoholders' Equity - Warrant Activity (Details) - USD ($)	1 Months Ended				3 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Aug. 31, 2019	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2020	Jul. 25, 2019	Mar. 31, 2019	Nov. 30, 2018	Nov. 30, 2016
Warrants
Warrants outstanding beginning balance					69,656
Warrants issued
Warrants exercised
Warrants outstanding ending balance	69,656				69,656
Weighted average exercise price
Beginning balance (in dollars per share)					$ 7.21
Ending balance (in dollars per share)	$ 7.21				7.21
Exercise price of warrants (in dollars per share)	$ 7.21				$ 7.21	$ 7.21
Warrants | Original Term Loan 2016
Warrants
Warrants exercised		32,614
Weighted average exercise price
Warrant term						7 years				7 years
Common stock to be issued if warrants are exercised (in shares)										65,228
Exercise price of warrants (in dollars per share)										$ 7.41
Outstanding warrants						$ 32,614
Shares issued		24,328
Warrants | Amended Term Loan 2016
Warrants
Warrants exercised			7,875
Weighted average exercise price
Warrant term			7 years						7 years
Common stock to be issued if warrants are exercised (in shares)									15,750
Exercise price of warrants (in dollars per share)									$ 3.06
Outstanding warrants						7,875
Shares issued			6,969
Warrants | 2019 Term Loan
Warrants
Warrants issued				58,332
Warrants exercised	29,167
Weighted average exercise price
Ending balance (in dollars per share)				$ 8.10
Common stock to be issued if warrants are exercised (in shares)							29,167	70,000
Exercise price of warrants (in dollars per share)				$ 8.10				$ 8.10
Outstanding warrants						29,167
Shares issued	24,185
Fair value						$ 400,000
Warrants | Term Loan 2019, Tranche Two
Weighted average exercise price
Common stock to be issued if warrants are exercised (in shares)							5,750
Exercise price of warrants (in dollars per share)							$ 25.71
Warrants issuable in future				11,668