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Earnings Per Share (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jan. 31, 2024
Jan. 31, 2023
Jan. 31, 2024
Jan. 31, 2023
Earnings Per Share [Abstract]        
Reduction in weighted average shares as a result of the repurchase of common shares (in shares) 0 0 0 0
Weighted average performance shares outstanding during the period that are excluded from EPS calculation 719,000 431,000 699,000 352,000
Numerator:        
Net loss $ (10,558,000) $ (4,805,000) $ (11,995,000) $ (15,901,000)
Loss on extinguishment of convertible preferred stock 13,640,000 0 13,640,000 0
Convertible preferred stock issuance costs 4,273,000 0 4,273,000 0
Dividend on convertible preferred stock (2,061,000) (1,737,000) (3,884,000) (3,447,000)
Numerator for diluted calculation $ (30,532,000) $ (6,542,000) $ (33,792,000) $ (19,348,000)
Denominator:        
Denominator for basic calculation (in shares) 28,662,000 27,954,000 28,704,000 27,892,000
Denominator for diluted calculation (in shares) 28,662,000 27,954,000 28,704,000 27,892,000
Stock-based Awards        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive equity-classified stock-based awards not included in calculation of diluted earnings per share (in shares) 1,111,000 967,000 1,139,000 1,023,000
Common Shares Related to Business Acquisition        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive equity-classified stock-based awards not included in calculation of diluted earnings per share (in shares)     162,000 324,000
Common Shares Related to Conversion of Convertible Preferred Stock        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive equity-classified stock-based awards not included in calculation of diluted earnings per share (in shares) 6,866,000 4,533,000 5,812,000 4,496,000