Exercise price per share or per unit of warrants or rights without expiry date.

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Number Of Employees Exercised Share Incentive Plan

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Percentage of vesting of award under share-based payment arrangement.

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Carrying amount of statutory reserve.

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Number of warrants issued during the period.

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Represents for stock issued during period shares warrants exercised.

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Amount of increase to additional paid-in capital (APIC) for recognition of cost for option under share-based payment arrangement.

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

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

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Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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The cash outflow for cost incurred directly with the issuance of an equity security.

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The cash inflow associated with the amount received from entity's first offering of stock to the public.

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

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The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

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The cash inflow associated with the amount received from holders exercising their stock warrants.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Number of options vested.

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Per share or per unit amount of equity securities issued.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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Equity - Additional informations (Details)	1 Months Ended			12 Months Ended
Equity - Additional informations (Details)	Sep. 30, 2021 USD ($) $ / shares shares	May 31, 2021 USD ($) $ / shares shares	Apr. 30, 2021 USD ($) $ / shares shares	Sep. 30, 2021 USD ($) employee $ / shares shares	Sep. 30, 2020 USD ($) shares	Sep. 20, 2021 $ / shares	Jul. 22, 2021 $ / shares shares	Jul. 21, 2021 $ / shares shares	May 04, 2021 $ / shares	Mar. 29, 2021 $ / shares	Sep. 12, 2020 $ / shares shares	Sep. 11, 2020 $ / shares shares
Stockholders Equity [Line Items]
Common stock value	$ 557,781			$ 557,781	$ 20,518
Common stock, shares authorized \| shares	600,000,000			600,000,000			600,000,000	200,000,000			200,000,000	20,000,000
Ordinary shares, par value (in dollars per share) \| $ / shares	$ 0.001			$ 0.001			$ 0.001	$ 0.001			$ 0.001	$ 0.001
Number of shares issued (in shares) \| shares		93,111,717	161,000,000	7,439,886
Price per share \| $ / shares	$ 1.15	$ 0.22	$ 0.30	$ 1.15
Proceeds from issuance of common stock			$ 48,300,000	$ 8,555,869
Offering costs	$ 6,811,246	$ 4,215,831	$ 808,967
Number of warrants issued \| shares		275,150,000		275,150,000	692,886
Exercise price per share without expiry date \| $ / shares		$ 0.2199
Exercise price of warrant \| $ / shares		$ 0.0001				$ 0.22			$ 0.30	$ 1.15
Net proceeds from the issuance of ordinary share				$ 126,010,538
Proceeds from issuance of warrants	$ 19,050	$ 81,009,763
Number of shares per warrant \| shares	1			1
Number of warrants Exercised \| shares				275,150,000
Number of investor warrant issued to purchase \| shares	275,114,477			275,114,477
Proceeds from warrants exercised				$ 19,050
Shares issued under Share incentive plan \| shares				1,168,000
Percentage of shares issued under share incentive plan				10.00%
Vesting percentage				20.00%
Vesting period				5 years
Share-based compensation expenses				$ 1,260,674
Statutory reserve	$ 973,555			$ 973,555	$ 972,092
Shares Vested under Share incentive plan \| shares				596,600
Number of employees exercised share incentive plan \| employee				4
Share-based compensation expense				$ 805,410
Remaining ordinary shares available Share incentive plan \| shares	571,400			571,400
Statutory surplus reserve				10.00%
Minimum percentage of statutory reserve transferable				50.00%
Warrant [Member]
Stockholders Equity [Line Items]
Fair value of warrants	$ 455,264			$ 455,264
Investor Warrants and Placement Agent Warrants [Member]
Stockholders Equity [Line Items]
Exercise price of warrant \| $ / shares						$ 0.22			$ 0.30	$ 1.15
Farmmi Supply Chain
Stockholders Equity [Line Items]
Noncontrolling interest	3.85%			3.85%	3.85%
Additional paid-in capital
Stockholders Equity [Line Items]
Share-based compensation expenses				$ 1,260,077