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Basis of Presentation and Significant Accounting Policies - Infrastructure Advances (Details) - USD ($) $ in Thousands	1 Months Ended			3 Months Ended		12 Months Ended
	Oct. 31, 2020	Aug. 31, 2020	Aug. 31, 2018	Apr. 30, 2021	Jan. 31, 2021	Oct. 31, 2019	Oct. 31, 2021	Jul. 31, 2021	Jul. 31, 2018
Significant Accounting Policies [Line Items]
Amount loaned						$ 23,800
Prepaid expenses and other current assets
Significant Accounting Policies [Line Items]
Infrastructure advance	$ 900
Current note receivable							$ 900
Agricola Belher
Significant Accounting Policies [Line Items]
Commitment amount	4,500						4,500
Amount loaned			$ 3,000
Loan receivable fixed interest rate (as a percent)		7.25%						10.00%
Infrastructure advance	1,800		3,000			$ 2,600
Term of loans receivables		2 years
Annual repayment of advances		$ 900	$ 600
Bridge loan to related parties								$ 3,500
Agricola Belher | Prepaid expenses and other current assets
Significant Accounting Policies [Line Items]
Infrastructure advance							900
Agricola Belher | Other long-term assets
Significant Accounting Policies [Line Items]
Infrastructure advance	900
Agricola Belher | LIBOR
Significant Accounting Policies [Line Items]
Advances variable interest rate (as a percent)			10.00%						3.00%
Don Memo
Significant Accounting Policies [Line Items]
Commitment amount	2,400
Amount loaned	$ 700			$ 600	$ 700
Loan receivable fixed interest rate (as a percent)	7.25%
Infrastructure advance	$ 700						2,000
Don Memo | Prepaid expenses and other current assets
Significant Accounting Policies [Line Items]
Infrastructure advance	400						400
Don Memo | Other long-term assets
Significant Accounting Policies [Line Items]
Infrastructure advance	$ 300						$ 1,600

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- Definition

The amount of annual repayment of the infrastructure advances that will be made.

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The stated fixed rate of interest on a loan receivable.

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Term of loans receivables.

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Significant Accounting Policies [Line Items]

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For an unclassified balance sheet, amount of receivables arising from transactions with related parties.

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The percentage points (also referred to as 'margin') added to the reference rate as stated in the loan agreement and used to compute the variable rate on the loans receivable. For instance, the loan agreement might state that the interest rate the borrower is obligated to pay is the London Interbank Offered Rate (LIBOR) plus three quarters (3/4) of a percentage point adjusted quarterly (each three months). LIBOR in this example is the index or reference rate, 3/4 percentage point is the margin, the reference rate plus the margin is the fully indexed rate. This element would be used to report separately the margin.

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Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay, due within 1 year (or 1 business cycle).

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The cash outflow for a loan, supported by a promissory note, granted to related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.

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Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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