Earnings Per Share (Tables)

9 Months Ended

Apr. 30, 2016

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 April 30,				Nine months ended April 30,
	2016			2015	2016		2015
Numerator:
Net (loss) income for basic calculation	$	(14,355,000	)	4,960,000	(10,440,000	)	17,770,000
Numerator for diluted calculation	$	(14,355,000	)	4,960,000	(10,440,000	)	17,770,000
Denominator:
Denominator for basic calculation	16,195,000			16,202,000	16,184,000		16,220,000
Effect of dilutive securities:
Stock-based awards	—			180,000	—		248,000
Denominator for diluted calculation	16,195,000			16,382,000	16,184,000		16,468,000