Acquisitions (NG-911, Inc.) (Details) - NG-911 - USD ($)		12 Months Ended
Feb. 21, 2020	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
Business Acquisition [Line Items]
Aggregate purchase price	$ 1,188,000
Payable in cash	781,000	$ 781,000	$ 0	$ 0
Business Combination, Liabilities Arising from Contingencies, Amount Recognized	$ 407,000
Business Combination, Liabilities Arising From Contingencies, Term	5 years

Business Combination, Liabilities Arising From Contingencies, Term

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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

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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- Definition

The amount, measured at acquisition-date fair value, of all liabilities assumed that arise from contingencies and were recognized by the entity.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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