Earnings Per Share (Tables)

9 Months Ended

Apr. 30, 2017

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,
	2017		2016		2017	2016
Numerator:
Net income (loss) for basic calculation	$	4,417,000	(14,355,000	)	8,513,000	(10,440,000	)
Numerator for diluted calculation	$	4,417,000	(14,355,000	)	8,513,000	(10,440,000	)
Denominator:
Denominator for basic calculation	23,449,000		16,195,000		23,420,000	16,184,000
Effect of dilutive securities:
Stock-based awards	54,000		—		29,000	—
Denominator for diluted calculation	23,503,000		16,195,000		23,449,000	16,184,000