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Common Stock, Preferred Stock and Warrants With-Down Round Protection - Schedule of Stock Grants, by Exercise Price Range (Details)	12 Months Ended
	Dec. 31, 2018 $ / shares shares
Outstanding Balance	3,992,610
Exercisable	2,721,587
Exercise Price One [Member]
Exercise price | $ / shares	$ 6.25
Outstanding Balance	350,212
Weighted average remaining contractual life (years)	3 years 2 months 8 days
Weighted average exercise price | $ / shares	$ 6.25
Exercisable	350,212
Weighted average remaining contractual life (years)	3 years 2 months 8 days
Exercise Price Two [Member]
Exercise price | $ / shares	$ 7.00
Outstanding Balance	2,000
Weighted average remaining contractual life (years)	5 years 6 months
Weighted average exercise price | $ / shares	$ 7.00
Exercisable	2,000
Weighted average remaining contractual life (years)	5 years 6 months
Exercise Price Three [Member]
Exercise price | $ / shares	$ 4.50
Outstanding Balance	53,332
Weighted average remaining contractual life (years)	7 years 2 months 16 days
Weighted average exercise price | $ / shares	$ 4.50
Exercisable	53,332
Weighted average remaining contractual life (years)	7 years 2 months 16 days
Exercise Price Four [Member]
Exercise price | $ / shares	$ 4.50
Outstanding Balance	26,666
Weighted average remaining contractual life (years)	7 years 10 months 17 days
Weighted average exercise price | $ / shares	$ 4.50
Exercisable	26,666
Weighted average remaining contractual life (years)	7 years 10 months 17 days
Exercise Price Five [Member]
Exercise price | $ / shares	$ 4.50
Outstanding Balance	1,231,016
Weighted average remaining contractual life (years)	8 years 2 months 16 days
Weighted average exercise price | $ / shares	$ 4.50
Exercisable	1,231,016
Weighted average remaining contractual life (years)	8 years 2 months 16 days
Exercise Price Six [Member]
Exercise price | $ / shares	$ 4.50
Outstanding Balance	661,875
Weighted average remaining contractual life (years)	8 years 3 months 4 days
Weighted average exercise price | $ / shares	$ 4.50
Exercisable	382,618
Weighted average remaining contractual life (years)	8 years 3 months 4 days
Exercise Price Seven [Member]
Exercise price | $ / shares	$ 7.75
Outstanding Balance	50,000
Weighted average remaining contractual life (years)	8 years 3 months 4 days
Weighted average exercise price | $ / shares	$ 7.75
Exercisable	28,904
Weighted average remaining contractual life (years)	8 years 3 months 4 days
Exercise Price Eight [Member]
Exercise price | $ / shares	$ 4.50
Outstanding Balance	59,576
Weighted average remaining contractual life (years)	8 years 4 months 28 days
Weighted average exercise price | $ / shares	$ 4.50
Exercisable	47,171
Weighted average remaining contractual life (years)	8 years 4 months 28 days
Exercise Price Nine [Member]
Exercise price | $ / shares	$ 4.50
Outstanding Balance	290,585
Weighted average remaining contractual life (years)	8 years 5 months 23 days
Weighted average exercise price | $ / shares	$ 4.50
Exercisable	146,752
Weighted average remaining contractual life (years)	8 years 5 months 23 days
Exercise Price Ten [Member]
Exercise price | $ / shares	$ 4.50
Outstanding Balance	585,848
Weighted average remaining contractual life (years)	8 years 8 months 16 days
Weighted average exercise price | $ / shares	$ 4.50
Exercisable	250,390
Weighted average remaining contractual life (years)	8 years 8 months 16 days
Exercise Price Eleveen [Member]
Exercise price | $ / shares	$ 4.50
Outstanding Balance	665,000
Weighted average remaining contractual life (years)	9 years 1 month 13 days
Weighted average exercise price | $ / shares	$ 4.50
Exercisable	193,731
Weighted average remaining contractual life (years)	9 years 1 month 13 days
Exercise Price Twelve [Member]
Exercise price | $ / shares	$ 4.50
Outstanding Balance	16,500
Weighted average remaining contractual life (years)	9 years 2 months 27 days
Weighted average exercise price | $ / shares	$ 4.50
Exercisable	8,795
Weighted average remaining contractual life (years)	9 years 2 months 27 days

X

- Definition

The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
-Paragraph 2
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The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

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- Definition

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- Definition

Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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