The estimated future forfeitures related to total unrecognized stock-based compensation cost.

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- Definition

The portion of stock-based compensation that is capitalized in ending inventory.

+ References

No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

The amount of expense, net of income tax, recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

No definition available.

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- Definition

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.

+ References

No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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- Definition

Discount rate from fair value on purchase date that participants pay for shares.

+ References

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- Definition

Number of options outstanding, including both vested and non-vested options.

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Stock-Based Compensation - Expenses (Details) - USD ($)	3 Months Ended
Stock-Based Compensation - Expenses (Details) - USD ($)	Oct. 31, 2019	Oct. 31, 2018	Jul. 31, 2019
Stock-based Compensation Expenses
Stock-based compensation expense before income tax benefit	$ 879,000	$ 1,046,000
Estimated income tax benefit	(189,000)	(228,000)
Net stock-based compensation expense	690,000	818,000
Total remaining unrecognized compensation cost related to the unvested stock-based awards	11,885,000
Estimated forfeitures related to unvested stock-based awards	$ 1,085,000
Weighted average number of years net compensation cost is expected to be recognized over	3 years 3 months 18 days
Stock-based compensation capitalized and included in ending inventory	$ 48,000		$ 48,000
Stock Options
Stock-based Compensation Expenses
Stock-based compensation expense before income tax benefit	$ 82,000	171,000
Number of stock-based option awards outstanding at period end (in shares)	1,503,295		1,555,555
Performance Shares
Stock-based Compensation Expenses
Stock-based compensation expense before income tax benefit	$ 352,000	406,000
RSUs and restricted stock
Stock-based Compensation Expenses
Stock-based compensation expense before income tax benefit	698,000	547,000
ESPP
Stock-based Compensation Expenses
Stock-based compensation expense before income tax benefit	57,000	52,000
Share units
Stock-based Compensation Expenses
Stock-based compensation expense before income tax benefit	$ (310,000)	(130,000)
Stock Appreciation Rights (SARs)
Stock-based Compensation Expenses
Number of stock-based option awards outstanding at period end (in shares)	0		0
Cost of sales
Stock-based Compensation Expenses
Stock-based compensation expense before income tax benefit	$ 59,000	58,000
Selling, general and administrative expenses
Stock-based Compensation Expenses
Stock-based compensation expense before income tax benefit	743,000	905,000
Research and development expenses
Stock-based Compensation Expenses
Stock-based compensation expense before income tax benefit	$ 77,000	$ 83,000
2001 Employee Stock Purchase Plan \| ESPP
Stock-based Compensation Expenses
Discount offered to employees participating in the ESPP as a percentage of market price	15.00%	15.00%