Accounts Receivable

9 Months Ended

Apr. 30, 2024

Accounts receivable consist of the following at:


	April 30, 2024		July 31, 2023
Receivables from commercial and international customers	$	39,770,000	52,438,000
Unbilled receivables from commercial and international customers	76,932,000		54,469,000
Receivables from the U.S. government and its agencies	21,316,000		31,149,000
Unbilled receivables from the U.S. government and its agencies	64,334,000		27,192,000
Total accounts receivable	202,352,000		165,248,000
Less allowance for doubtful accounts	2,706,000		2,089,000
Accounts receivable, net	$	199,646,000	163,159,000

Unbilled receivables as of April 30, 2024 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 April 30, 2024 will be billed and collected within one year. Accounts receivable in the table above excludes $417,000 and $2,993,000 of long-term unbilled receivables presented within "Other assets, net" in the Condensed Consolidated Balance Sheets as of April 30, 2024 and July 31, 2023, respectively.

As of April 30, 2024, except for the U.S. government (and its agencies), which represented 42.3% 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.