Summary of Significant Accounting and Reporting Policies (Tables)

12 Months Ended

Jul. 31, 2014

Accounting Policies [Abstract]

Schedule of numerators and denominators used in basic and diluted EPS calculations

The following table reconciles the numerators and denominators used in the basic and diluted EPS calculations:

	Fiscal Years Ended July 31,
	2014		2013	2012
Numerator:
Net income for basic calculation	$	25,151,000	17,808,000	32,416,000
Effect of dilutive securities:
Interest expense (net of tax) on 3.0% convertible senior notes	3,394,000		4,468,000	4,468,000
Numerator for diluted calculation	$	28,545,000	22,276,000	36,884,000
Denominator:
Denominator for basic calculation	15,943,000		16,963,000	19,995,000
Effect of dilutive securities:
Stock-based awards	254,000		91,000	228,000
Conversion of 3.0% convertible senior notes	4,709,000		6,010,000	5,768,000
Denominator for diluted calculation	20,906,000		23,064,000	25,991,000