Stock-Based Compensation - Performance Based Restricted Stock Units (Details) - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expenses	$ 4,951,820	$ 4,387,554
Restricted stock units - Performance based awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		988,958
Outstanding at end of period (in shares)	988,958
Granted (in dollars per share)		$ 4.48
Outstanding (in dollars per share)	$ 4.48
Stock based compensation expenses	$ 641,517	$ 505,999
Unrecognized stock-based compensation expenses	$ 900,000
Decrease in unrecognized stock-based compensation expenses		$ 700,000
Number of shares per unit	1
Fair value assumptions:
Expected stock price volatility	70.00%
Risk-free interest rate - minimum	2.90%
Risk-free interest rate - maximum	3.10%
Dividend yield rate	0.00%
Term (years)	10 years
Market-based
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in dollars per share)	$ 4.07

Represents the number of shares per unit.

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- Definition

Share-based Payment Arrangement, Nonvested Award, Excluding Option, Increase (Decrease) in Cost Not yet Recognized, Amount

+ References

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.

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The minimum risk-free interest rate assumption that is used in valuing an option on its own shares.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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