v3.20.1

Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2020

Stockholders' Equity Note [Abstract]

Schedule of Preferred Units [Table Text Block]

		As of March 31, 2020												As of December 31, 2019
		Preferred Shares Outstanding				Liquidation Preference (Per Share)				Total Liquidation Preference				Preferred Shares Outstanding				Liquidation Preference (Per Share)				Total Liquidation Preference
Series C-3			52,000			$	10.00			$	520,000				52,000			$	10.00			$	520,000
Series E			89,623			$	49.20			$	4,409,452				89,623			$	49.20			$	4,409,452
Series G			100,000			$	187.36			$	18,736,452				100,000			$	187.36			$	18,736,452
Total			241,623							$	23,665,904				241,623							$	23,665,904

Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]

Expected term, years			5 - 10
Volatility			102.73% - 107.87%
Dividend yield			0.0%
Risk-free interest rate			1.16% - 1.67%
Weighted average grant date fair value of options granted during the period			$ 4.47

Share-based Payment Arrangement, Option, Activity [Table Text Block]

		Shares				Weighted Average Exercise Price				Weighted Average Remaining Contractual Term (Years)				Aggregate Intrinsic Value
Outstanding at beginning of period			1,376,394			$	8.98				6.8			$	1,232,545
Granted			380,234			$	5.91							$	-
Forfeited			(28,800	)		$	9.01							$	-
Expired			(6,891	)		$	12.53							$	-
Exercised			-				-							$	-
Outstanding at end of period			1,720,937			$	8.28				7.1			$	205,943
Exercisable at end of period			1,037,899			$	8.94				5.8			$	156,570

X

- Definition

Tabular disclosure of preferred units of master limited partnerships that have priority over limited partner units in areas including liquidation, redemption, conversion, tax status of distribution or sharing in distributions. This schedule ordinarily includes a description of the preferred units that details various rights including redemption, conversion, liquidation, and sharing in distributions; capital contributed by preferred partners; number of preferred units authorized to be issued, issued, and outstanding; aggregate cumulative cash distributions made to the preferred partners; aggregate cumulative net income earned by the preferred partners; capital account balance of the preferred partners.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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