Condensed Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]
Revenues	$ 321,683	$ 226,217
Cost of revenues	293,304	200,741
Gross profit	28,379	25,476
Selling, general and administrative expenses	19,832	14,714
Operating income	8,547	10,762
Other income (expense):
Interest expense	(351)	(223)
Interest income	42	5
Other	57	(88)
Income before income tax expense	8,295	10,456
Provision for federal, state and foreign income taxes	3,624	3,904
Net income	4,671	6,552
Less: Net loss attributable to noncontrolling interest	(1,243)	0
Net income attributable to Matrix Service Company	$ 5,914	$ 6,552
Basic earnings per common share (US$ per share)	$ 0.22	$ 0.25
Diluted earnings per common share (US$ per share)	$ 0.22	$ 0.25
Weighted average common shares outstanding:
Basic (shares)	26,470	26,116
Diluted (shares)	27,134	26,647