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Accounts Receivable | 3 Months Ended
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Oct. 31, 2023
Receivables [Abstract] |
Accounts Receivable | Accounts Receivable Accounts receivable consist of the following at:
|  | October 31, 2023 |  | July 31, 2023
Receivables from commercial and international customers |  | $ | 53,001,000 |  |  | 52,438,000 |
Unbilled receivables from commercial and international customers |  | 68,474,000 |  |  | 54,469,000 |
Receivables from the U.S. government and its agencies |  | 19,269,000 |  |  | 31,149,000 |
Unbilled receivables from the U.S. government and its agencies |  | 46,239,000 |  |  | 27,192,000 |
Total accounts receivable |  | 186,983,000 |  |  | 165,248,000 |
Less allowance for doubtful accounts |  | 1,918,000 |  |  | 2,089,000 |
Accounts receivable, net |  | $ | 185,065,000 |  |  | 163,159,000 |
Unbilled receivables as of October 31, 2023 relate to contracts-in-progress for which revenue has been recognized, but for which we have not yet earned the right to bill the customer for work performed to-date. Under ASC 606, unbilled receivables constitute contract assets. Management estimates that a substantial portion of the amounts not yet billed at October 31, 2023 will be billed and collected within one year. Accounts receivable in the table above excludes $2,993,000 of long-term unbilled receivables presented within "Other assets, net" in the consolidated balance sheet as of July 31, 2023. As of October 31, 2023, except for the U.S. government (and its agencies), which represented 35.0% of total accounts receivable, there were no other customers which accounted for greater than 10% of total accounts receivable. As of July 31, 2023, except for the U.S. government (and its agencies) and AT&T, which represented 35.3% and 11.0% of total accounts receivable, respectively, there were no other customers which accounted for greater than 10% of total accounts receivable.

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- Definition The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//310-10/tableOfContent + Details
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- References No definition available. + Details
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