Earnings per Common Share (Tables)

12 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Computation of basic and diluted earnings per share

The computation of basic and diluted EPS is as follows:

	Fiscal Years Ended
	June 30, 2018			June 30, 2017			June 30, 2016
	(In thousands, except per share data)
Basic EPS:
Net income (loss) attributable to Matrix Service Company	$	(11,480	)	$	(183	)	$	28,863
Weighted average shares outstanding	26,769			26,533			26,597
Basic earnings (loss) per share	$	(0.43	)	$	(0.01	)	$	1.09
Diluted EPS:
Weighted average shares outstanding—basic	26,769			26,533			26,597
Dilutive stock options	—			—			68
Dilutive nonvested deferred shares	—			—			435
Diluted weighted average shares	26,769			26,533			27,100
Diluted earnings (loss) per share	$	(0.43	)	$	(0.01	)	$	1.07

Schedule of antidilutive securities excluded from computation of diluted earnings per share

The following securities are considered antidilutive and have been excluded from the calculation of diluted earnings (loss) per share:

	Fiscal Years Ended
	June 30, 2018	June 30, 2017	June 30, 2016
	(In thousands of shares)
Stock options	31	43	—
Nonvested deferred shares	424	430	56
Total antidilutive securities	455	473	56