Accounting Policies [Line Items]

No definition available.

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- Definition

The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation.

+ References

No definition available.

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- Definition

The amount of cash as of the balance sheet date that is not insured by the Federal Deposit Insurance Corporation.

+ References

No definition available.

+ Details

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- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(5))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

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.

+ References

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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.

+ References

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- Definition

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

+ References

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- Definition

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.

+ 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
-Subparagraph (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	1 Months Ended
	Dec. 31, 2019	Jun. 30, 2019	Feb. 28, 2019	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2018
Accounting Policies [Line Items]
Cash, FDIC insured amount	$ 250,000
Cash balance in excess of amount covered by Federal Deposit Insurance Corporation	300,000
Royalty [Member]
Accounting Policies [Line Items]
Deferred revenue	$ 3,000,000					$ 500,000
Black-Scholes Option Pricing Model [Member] \| Options vesting grant date [Member]
Accounting Policies [Line Items]
Volatility rate					113.67%
Risk-free interest rate					2.64%
Weighted average expected life (in years)					5 years
Dividend yield					0.00%
Black-Scholes Option Pricing Model [Member] \| Options vesting on first anniversary of grant date [Member]
Accounting Policies [Line Items]
Volatility rate			85.40%	112.60%	116.59%
Risk-free interest rate			2.51%	2.81%	2.64%
Weighted average expected life (in years)			5 years 6 months	6 years	6 years
Dividend yield			0.00%	0.00%	0.00%
Black-Scholes Option Pricing Model [Member] \| Options vesting on february three two thousand twenty [Member]
Accounting Policies [Line Items]
Volatility rate	70.00%	85.30%
Risk-free interest rate	1.73%	1.83%
Weighted average expected life (in years)	5 years	5 years 3 months 18 days
Dividend yield	0.00%	0.00%