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Tax rebate.

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Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid Investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of investment in marketable security, classified as noncurrent.

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No definition available.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The cash inflow from the additional capital contribution to the entity.

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- Definition

The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

+ References

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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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No definition available.

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Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

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SIGNIFICANT ACCOUNTING POLICIES AND OTHER RISKS AND UNCERTAINTIES (Details Narrative) - USD ($) $ in Thousands			3 Months Ended		6 Months Ended
	Feb. 04, 2022	May 14, 2020	Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2022	Nov. 18, 2021	Nov. 04, 2021
Product Information [Line Items]
Net cash used in operating activities					$ 16,059	$ 8,898
Accumulated losses			$ 146,541		146,541		$ 123,639
Cash, cash equivalents, marketable securities and certain restricted cash			72,551		72,551		90,230
Proceeds from issuance of common stock						1,031
Restricted Cash			10,100		10,100		10,000
Restricted cash and cash equivalents, current			7,400		7,400		7,400
Marketable securities have maturities greater than 12 months			97		97
Tax rebate			0	$ 182	$ 182	0
Accounts Payable [Member] \| Supplier Concentration Risk [Member] \| Two Third-party Vendors [Member]
Product Information [Line Items]
Concentration risk percentage					69.00%
Accounts Payable [Member] \| Supplier Concentration Risk [Member] \| Third Party Vendor One [Member]
Product Information [Line Items]
Concentration risk percentage					53.00%
Accounts Payable [Member] \| Supplier Concentration Risk [Member] \| Third Party Vendor Two [Member]
Product Information [Line Items]
Concentration risk percentage					16.00%
Contract Manufacturer [Member]
Product Information [Line Items]
Restricted Cash			2,600		$ 2,600		$ 2,600
Stock Purchase Agreement [Member]
Product Information [Line Items]
Proceeds from issuance of common stock					0	$ 1,000
At The Market Equity Offering [Member]
Product Information [Line Items]
Proceeds from issuance sale of equity	$ 50,000				49,800
Beyond Air and Beyond Cancer [Member]
Product Information [Line Items]
Cash, cash equivalents, marketable securities and certain restricted cash			65,000		65,000
Beyond Air [Member]
Product Information [Line Items]
Net cash used in operating activities			7,123		12,635
Cash, cash equivalents, marketable securities and certain restricted cash			$ 40,754		40,754
Lincoln Park Capital Fund LLC [Member] \| Stock Purchase Agreement [Member]
Product Information [Line Items]
Proceeds from issuance of common stock		$ 40,000
Remaining available issuance of common stock					$ 18,100
Beyond Cancer [Member]
Product Information [Line Items]
Equity method ownership percentage			80.00%		80.00%			20.00%	20.00%
Beyond Cancer [Member] \| Noncontrolling Interest [Member]
Product Information [Line Items]
Equity method ownership percentage			20.00%		20.00%