Stock-based Compensation, Equity Grants, and Warrants - Stock Options Fair Value Assumptions (Details) - Employee Stock Option - $ / shares	3 Months Ended	12 Months Ended
Dec. 31, 2019	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility	50.00%	50.00%
Expected term (Years)	10 years
October 18, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Strike price (in dollars per share)	$ 4.17
Stock price (in dollars per share)	$ 4.17
Expected term (Years)	10 years
Calculated fair value (in dollars per share)	$ 2.54
October 18, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Strike price (in dollars per share)	4.17
Stock price (in dollars per share)	4.17
Threshold vesting price (in dollars per share)	$ 8.00
Expected term (Years)	10 years
Calculated fair value (in dollars per share)	$ 2.56
October 18, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Strike price (in dollars per share)	4.17
Stock price (in dollars per share)	4.17
Threshold vesting price (in dollars per share)	$ 10.00
Expected term (Years)	10 years
Calculated fair value (in dollars per share)	$ 2.53
October 18, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Strike price (in dollars per share)	4.17
Stock price (in dollars per share)	4.17
Threshold vesting price (in dollars per share)	$ 12.00
Expected term (Years)	10 years
Calculated fair value (in dollars per share)	$ 2.51
Service period	1 year

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Threshold Vesting Price

No definition available.

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Per share weighted average intrinsic value of equity-based compensation awards vested. Excludes stock and unit options.

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- Definition

Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

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No definition available.

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- Definition

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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- Definition

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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- Definition

Price of a single share of a number of saleable stocks of a company.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-Publisher FASB
-Name Accounting Standards Codification
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-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

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