Exercise price per share or per unit of warrants or rights outstanding.

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Describe the call and/or exercise rights, prices and dates of common stock.

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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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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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Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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Expiration date of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in YYYY-MM-DD format.

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Non Operating Income Expense Inducement Of Warrants.

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Placement agent fees and other related expenses.

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Warrants - Additional Information (Details) - USD ($)			3 Months Ended		6 Months Ended	9 Months Ended
Warrants - Additional Information (Details) - USD ($)	Aug. 06, 2021	Sep. 12, 2019	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021	Sep. 30, 2021	Sep. 30, 2020
Fair Value Assumptions Expected volatility Rate Maximum			72.84%	74.18%		74.80%	74.18%
Fair Value Assumptions Risk Free Interest Rate Maximum			0.96%	0.39%		1.15%	1.68%
Fair Value Assumptions Expected Dividend Rate			0.00%	0.00%		0.00%	0.00%
Net Proceeds from Underwriting							$ 13,015,000
Proceeds from private placement		$ 52,500,000
MD Anderson Warrant [Member]
Number of securities into which the class of warrant converted			3,333,333			3,333,333
Warrant exercise per share			$ 0.001			$ 0.001
Fair value of adjustment of warrants						$ 14,500,000
Warrant Expiry date			Dec. 31, 2026			Dec. 31, 2026
SVB Warrants [Member]
Common stock	$ 432,844
Exercise price	2.22
Warrants fully vested upon issuance	10 years
Black-Scholes Model [Member] \| SVB Warrants [Member]
Fair value of adjustment of warrants	$ 800,000
Fair Value Assumptions Expected Term1	10 years
Expected volatility	79.00%
Risk-free interest rate	1.31%
Dividends	$ 0
Securities Purchase Agreement [Member]
Net Proceeds from Underwriting						$ 47,100,000
Private Placement [Member]
Number of securities into which the class of warrant converted		17,803,031	18,939,394			18,939,394
Warrant exercise per share		$ 3.01	$ 3.01			$ 3.01
Fair value of adjustment of warrants						$ 18,400,000
Fair Value Assumptions Expected volatility Rate Maximum						71.00%
Fair Value Assumptions Risk Free Interest Rate Maximum						2.99%
Fair Value Assumptions Expected Term1						5 years
Fair Value Assumptions Expected Dividend Rate					0.00%
Placement agent fees and other expenses		$ 1,100,000
Private Placement [Member] \| New Warrants [Member]
Number of securities into which the class of warrant converted		17,803,031
Warrant exercise per share		$ 7.00
Non-cash inducement warrant expense						$ 60,800,000