v3.26.3
Accounts Receivable (Tables)
 12 Months Ended
Jul. 31, 2026
Receivables [Abstract]  
Schedule of accounts, notes, loans and financing receivable
Accounts receivable consists of the following at July 31, 2026 and 2025:
20262025
Receivables from commercial and international customers$33,260,000 $36,987,000 
Unbilled receivables from commercial and international customers30,854,000 46,845,000 
Receivables from the U.S. government and its agencies3,854,000 3,721,000 
Unbilled receivables from the U.S. government and its agencies378,000 468,000 
Total accounts receivable68,346,000 88,021,000 
Less allowance for doubtful accounts543,000 845,000 
Accounts receivable, net$67,803,000 87,176,000