Earnings Per Share (Tables)

6 Months Ended

Jan. 31, 2015

Earnings Per Share [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:

	Three months ended January 31,			Six months ended January 31,
	2015		2014	2015	2014
Numerator:
Net income for basic calculation	$	7,585,000	5,983,000	12,810,000	11,288,000
Effect of dilutive securities:
Interest expense (net of tax) on 3.0% convertible senior notes	—		1,117,000	—	2,234,000
Numerator for diluted calculation	$	7,585,000	7,100,000	12,810,000	13,522,000
Denominator:
Denominator for basic calculation	16,241,000		15,970,000	16,229,000	16,212,000
Effect of dilutive securities:
Stock-based awards	264,000		287,000	281,000	141,000
Conversion of 3.0% convertible senior notes	—		6,230,000	—	6,199,000
Denominator for diluted calculation	16,505,000		22,487,000	16,510,000	22,552,000