Description of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jul. 31, 2022

Accounting Policies [Abstract]

Schedule of Weighted-average Number of Shares Used in the Calculation of Basic and Diluted Earnings Per Share

The weighted-average number of shares used in the calculation of basic and diluted earnings per share attributable to the Company’s common stockholders consists of the following:

Year ended July 31 (in thousands)	2022		2021		2020
Basic weighted-average number of shares		25,791		25,495		26,278
Effect of dilutive securities:
Stock options		434		229		1
Non-vested restricted Class B common stock		131		329		162
Diluted weighted-average number of shares		26,356		26,053		26,441

Schedule of Outstanding Stock Options Excluded from the Calculation of Diluted Earnings Per Share

The following outstanding stock options were excluded from the calculation of diluted earnings per share because the exercise prices of the stock options were greater than the average market price of the Company’s stock during the period:

Year ended July 31 (in thousands)	2022		2021		2020
Shares excluded from the calculation of diluted earnings per share		—		535		1,138

Schedule of Changes In Allowance For Doubtful Accounts

Year ended July 31 (in thousands)	Balance at beginning of year		Additions charged to costs and expenses		Deductions (1)			Balance at end of year
2022
Reserves deducted from accounts receivable:
Allowance for doubtful accounts	$	4,438	$	2,330	$	(886	)	$	5,882
2021
Reserves deducted from accounts receivable:
Allowance for doubtful accounts	$	6,085	$	1,782	$	(3,429	)	$	4,438
2020
Reserves deducted from accounts receivable:
Allowance for doubtful accounts	$	5,444	$	3,109	$	(2,468	)	$	6,085

(1) Primarily uncollectible accounts written off, net of recoveries.