Leases (Lease Liabilities) (Details) - USD ($)	Jul. 31, 2020	Aug. 01, 2019
Operating
Fiscal 2021	$ 9,373,000
Fiscal 2022	7,929,000
Fiscal 2023	6,251,000
Fiscal 2024	4,881,000
Fiscal 2025	4,215,000
Thereafter	2,798,000
Total future undiscounted cash flows	35,447,000
Less: Present value discount	3,091,000
Lease liabilities	$ 32,356,000	$ 38,848,000
Weighted-average remaining lease terms (in years)	4 years 6 months 10 days
Weighted-average discount rate	4.04%
Finance
Fiscal 2021	$ 60,000
Fiscal 2022	0
Fiscal 2023	0
Fiscal 2024	0
Fiscal 2025	0
Thereafter	0
Total future undiscounted cash flows	60,000
Less: Present value discount	3,000
Lease liabilities	$ 57,000
Weighted-average remaining lease terms (in years)	1 year 9 months 29 days
Weighted-average discount rate	6.37%
Total
Fiscal 2021	$ 9,433,000
Fiscal 2022	7,929,000
Fiscal 2023	6,251,000
Fiscal 2024	4,881,000
Fiscal 2025	4,215,000
Thereafter	2,798,000
Total future undiscounted cash flows	35,507,000
Less: Present value discount	3,094,000
Lease liabilities	$ 32,413,000

Lease, Liability

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- Definition

Lease, Liability, Fiscal Year Maturity

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- Definition

Lease, Liability, To Be Paid, After Year Five

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Lease, Liability, To Be Paid, Year Five

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Lease, Liability, To Be Paid, Year Four

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Lease, Liability, To Be Paid, Year One

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Lease, Liability, To Be Paid, Year Three

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Lease, Liability, To Be Paid, Year Two

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Lease, Liability, Undiscounted Excess Amount

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No definition available.

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No definition available.

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

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Amount of lessee's undiscounted obligation for lease payments for finance lease.

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Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for finance lease.

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- Definition

Weighted average discount rate for finance lease calculated at point in time.

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- Definition

Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease.

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Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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-Name Accounting Standards Codification
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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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